Skip to content
Heavy Metal Index
Thick pale whitefish fillet portions with subtle natural flaking illustrating tilapia ingredient context.

Heavy metals in Tilapia

Lead, cadmium, total arsenic, inorganic arsenic and total mercury in tilapia: monitoring results, studies, references by form and basis, limits, testing and controls.

Quick read

Tilapia in the HMI library has 286 reported results for lead, cadmium, total arsenic, inorganic arsenic, total mercury, methylmercury, mercury, nickel, chromium, uranium, Cu, Fe, Mn, Zn, Se, Ba, mercury (Hg) and Mg from 24 sources.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2U.S. Food and Drug Administration · 2022FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Cammilleri G, Tortorici M, Pantano L, Galluzzo FG, Pulvirenti A, Buscemi MD, Lo Dico GM, Macaluso A, Calabrese V, Jacob UM, Ferrantelli V · 2025Toxic metals and metalloids in collagen supplements of fish and jellyfish origin: Risk assessment for daily intakeOpen MedicineRead source →4Islam MS, Ahmed MK, Habibullah-Al-Mamun M, Raknuzzaman M · 2015The concentration, source and potential human health risk of heavy metals in the commonly consumed foods in BangladeshEcotoxicology and Environmental SafetyRead source →5Sirisangarunroj P, Monboonpitak N, Karnpanit W, Sridonpai P, Singhato A, Laitip N, Ornthai N, Yafa C, Judprasong K · 2023Toxic Heavy Metals and Their Risk Assessment of Exposure in Selected Freshwater and Marine Fish in ThailandFoods 2023, 12, 3967Read source →6Abbas MMM, EL-Sharkawy SM, Mohamed HR, Elaraby BE, Shaban WM, Metwally MG, Farrag DMG · 2023Heavy Metals Assessment and Health Risk to Consumers of Two Commercial Fish Species from Polyculture Fishponds in El-Sharkia and Kafr El-Sheikh, Egypt: Physiological and Biochemical StudyBiological Trace Element ResearchRead source →

Tilapia overview

Tilapia in the HMI library has 286 reported results for lead, cadmium, total arsenic, inorganic arsenic, total mercury, methylmercury, mercury, nickel, chromium, uranium, Cu, Fe, Mn, Zn, Se, Ba, Hg and Mg from 24 sources.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2U.S. Food and Drug Administration · 2022FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Cammilleri G, Tortorici M, Pantano L, Galluzzo FG, Pulvirenti A, Buscemi MD, Lo Dico GM, Macaluso A, Calabrese V, Jacob UM, Ferrantelli V · 2025Toxic metals and metalloids in collagen supplements of fish and jellyfish origin: Risk assessment for daily intakeOpen MedicineRead source →4Islam MS, Ahmed MK, Habibullah-Al-Mamun M, Raknuzzaman M · 2015The concentration, source and potential human health risk of heavy metals in the commonly consumed foods in BangladeshEcotoxicology and Environmental SafetyRead source →5Sirisangarunroj P, Monboonpitak N, Karnpanit W, Sridonpai P, Singhato A, Laitip N, Ornthai N, Yafa C, Judprasong K · 2023Toxic Heavy Metals and Their Risk Assessment of Exposure in Selected Freshwater and Marine Fish in ThailandFoods 2023, 12, 3967Read source →6Abbas MMM, EL-Sharkawy SM, Mohamed HR, Elaraby BE, Shaban WM, Metwally MG, Farrag DMG · 2023Heavy Metals Assessment and Health Risk to Consumers of Two Commercial Fish Species from Polyculture Fishponds in El-Sharkia and Kafr El-Sheikh, Egypt: Physiological and Biochemical StudyBiological Trace Element ResearchRead source → WHO GEMS/Food submissions reported lead in tilapia, as sold from 150 results in 2 reporting regions, with subgroup medians from 1 to 2 µg/kg.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → In the US Total Diet Study, tilapia, cooked had a median lead result below 4 µg/kg across 27 composites from 2017–2020.2U.S. Food and Drug Administration · 2022FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →

Across 4 other studies of ordinary farms and markets, reported lead means and medians on a dry-weight basis ranged from 346 µg/kg (authors 2021) to 1,850 µg/kg (Mendoza et al. 2023).8Unknown authors · 2021International Journal of Fisheries and Aquatic Studies 2021; 9(4): 230-233Peer-reviewed articleRead source →9Mendoza LC, Nolos RC, Villaflores OB, Apostol EMD, Senoro DB · 2023Detection of Heavy Metals, Their Distribution in Tilapia spp., and Health Risks AssessmentToxics 2023, 11(3), 286Read source → For cadmium, 4 studies on an as-sold or fresh-weight basis reported means and medians from 0.5 µg/kg (Spungen et al. 2024) to 840 µg/kg (Islam et al. 2015).4Islam MS, Ahmed MK, Habibullah-Al-Mamun M, Raknuzzaman M · 2015The concentration, source and potential human health risk of heavy metals in the commonly consumed foods in BangladeshEcotoxicology and Environmental SafetyRead source →10Spungen JH, et al. · 2024Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source → Higher results came from contaminated or exposed settings rather than ordinary supply. Tilapia, as sold from 0.3 mg/L HgCl2 exposure, basal diet (experiment) had total mercury higher at 1,500 µg/kg, against 40 µg/kg for unexposed control, basal diet in the same study.11Zahran E, Ahmed F, Hassan Z, Ibrahim I, Khaled AA, Palić D, El Sebaei MG · 2023Toxicity Evaluation, Oxidative, and Immune Responses of Mercury on Nile Tilapia: Modulatory Role of Dietary Nannochloropsis oculataNot reportedRead source →

For a buyer the practical points are the form bought, the basis a result is reported on, where the tilapia came from and the laboratory’s reporting limit. Testing finds contamination but does not remove it.

What counts as tilapia

This page covers tilapia in 4 forms kept separate in every comparison: tilapia, as sold (255 results), tilapia, dried (11 results), tilapia, peeled or flesh (11 results) and tilapia, cooked (9 results).1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2U.S. Food and Drug Administration · 2022FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Cammilleri G, Tortorici M, Pantano L, Galluzzo FG, Pulvirenti A, Buscemi MD, Lo Dico GM, Macaluso A, Calabrese V, Jacob UM, Ferrantelli V · 2025Toxic metals and metalloids in collagen supplements of fish and jellyfish origin: Risk assessment for daily intakeOpen MedicineRead source →4Islam MS, Ahmed MK, Habibullah-Al-Mamun M, Raknuzzaman M · 2015The concentration, source and potential human health risk of heavy metals in the commonly consumed foods in BangladeshEcotoxicology and Environmental SafetyRead source →5Sirisangarunroj P, Monboonpitak N, Karnpanit W, Sridonpai P, Singhato A, Laitip N, Ornthai N, Yafa C, Judprasong K · 2023Toxic Heavy Metals and Their Risk Assessment of Exposure in Selected Freshwater and Marine Fish in ThailandFoods 2023, 12, 3967Read source →6Abbas MMM, EL-Sharkawy SM, Mohamed HR, Elaraby BE, Shaban WM, Metwally MG, Farrag DMG · 2023Heavy Metals Assessment and Health Risk to Consumers of Two Commercial Fish Species from Polyculture Fishponds in El-Sharkia and Kafr El-Sheikh, Egypt: Physiological and Biochemical StudyBiological Trace Element ResearchRead source →

Results stay on the basis each source reports: as sold or fresh weight, dry weight, or unstated. Dry-weight, as-sold and unstated results are never pooled, and no moisture conversion is applied.

Heavy metal contamination profile of tilapia

The table holds every extracted tilapia result: one row for each statistic a source reports for a form, group and metal, 286 rows in all, grouped by metal and form; percentiles, ranges and maxima for the same samples as a mean or median are shown on that row.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2U.S. Food and Drug Administration · 2022FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Cammilleri G, Tortorici M, Pantano L, Galluzzo FG, Pulvirenti A, Buscemi MD, Lo Dico GM, Macaluso A, Calabrese V, Jacob UM, Ferrantelli V · 2025Toxic metals and metalloids in collagen supplements of fish and jellyfish origin: Risk assessment for daily intakeOpen MedicineRead source →4Islam MS, Ahmed MK, Habibullah-Al-Mamun M, Raknuzzaman M · 2015The concentration, source and potential human health risk of heavy metals in the commonly consumed foods in BangladeshEcotoxicology and Environmental SafetyRead source →5Sirisangarunroj P, Monboonpitak N, Karnpanit W, Sridonpai P, Singhato A, Laitip N, Ornthai N, Yafa C, Judprasong K · 2023Toxic Heavy Metals and Their Risk Assessment of Exposure in Selected Freshwater and Marine Fish in ThailandFoods 2023, 12, 3967Read source →6Abbas MMM, EL-Sharkawy SM, Mohamed HR, Elaraby BE, Shaban WM, Metwally MG, Farrag DMG · 2023Heavy Metals Assessment and Health Risk to Consumers of Two Commercial Fish Species from Polyculture Fishponds in El-Sharkia and Kafr El-Sheikh, Egypt: Physiological and Biochemical StudyBiological Trace Element ResearchRead source → Monitoring medians are HMI calculations from individual submissions; non-detects remain intervals between zero and the reporting limit and are never read as zero.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →

5 rows can be rated against an HMI reference for the same form and basis, 30 rows have a direct same-study comparison, and the rest stay unrated with the reason recorded. 50 values from 7 sources failed a check against their own source and are shown but not compared.4Islam MS, Ahmed MK, Habibullah-Al-Mamun M, Raknuzzaman M · 2015The concentration, source and potential human health risk of heavy metals in the commonly consumed foods in BangladeshEcotoxicology and Environmental SafetyRead source →8Unknown authors · 2021International Journal of Fisheries and Aquatic Studies 2021; 9(4): 230-233Peer-reviewed articleRead source →9Mendoza LC, Nolos RC, Villaflores OB, Apostol EMD, Senoro DB · 2023Detection of Heavy Metals, Their Distribution in Tilapia spp., and Health Risks AssessmentToxics 2023, 11(3), 286Read source →12Okonofua ES, Komolafe AS, Emeribe CN, Ogbomida ET, Butu AW · 2024Analysis of Bioaccumulation of Heavy Metals in Water, Cabbage (Brassica oleracea var. capitata) and Tilapia Fish (Oreochromis niloticus) from Unreclaimed Mining PitsEarth Sciences PakistanRead source →13Shaalan WM · 2024Hazardous effects of heavy metal pollution on Nile tilapia in the aquatic ecosystem of the Eastern Delta in EgyptBMC Veterinary ResearchRead source →14Páez-Osuna F, Bergés-Tiznado ME, Valencia-Castañeda G, Fregoso-López MG, León-Cañedo JA, Fierro-Sañudo JF, Ramírez-Rochín J · 2024Mercury and selenium in three fish species from a dam 20 months after a mine-tailing spill in the SE Gulf of California ecoregion, MexicoNot reportedRead source →15Sawe S, Amasi A, Wynants M · 2023Assessment of Potentially Toxic Metals in Fish from Lake Manyara, Northern TanzaniaBulletin of Environmental Contamination and ToxicologyRead source →

Comparison methods and scope

Each row is one statistic a source reports for one form of tilapia, group and metal; percentiles, ranges and maxima reported for the same samples as a mean or median are shown on that row. Different forms and preparation states are kept apart, and dry-weight results never share a reference with as-sold or fresh-weight results. Ratings place a result against an HMI reference built from monitoring results and ordinary-setting medians for the same form and basis. Same-study contrasts compare a contaminated or treated site with its control, targeted with random sampling, a prepared form with the unprocessed one, or one group of a study with the median of its other groups. Held rows failed a check against their own source and are shown but not compared.

About this table
Food formCollection scopeFindingComparisonEvidence
Tilapia findings from monitoring programmes, total diet studies and every extracted field, market and contaminated-site study, in µg/kg with each source’s form, basis, statistic and censoring retained.
Food formCollection scopeFinding (µg/kg)ComparisonEvidence
36 findings · 11 studies
Tilapia, as soldWHO GEMS/FoodPAHO2009As sold / freshmedian.
Tilapia, as soldWHO GEMS/FoodSEARO2009–2016As sold / freshmedian.
Tilapia, as soldWHO GEMS/FoodSEARO2013As sold / freshmedian.
Tilapia, as soldCammilleri et al. 2025Tilapia (Tilapia spp.) source2022–2023As sold / freshmean.
Tilapia, as soldIslam et al. 2015Bogra district, all samples2012As sold / freshmean.
Tilapia, as soldIslam et al. 2015Tilapia2012As sold / freshrange.
Tilapia, as soldSirisangarunroj et al. 2023freshwater fish, 3 Bangkok marketsCollection date unreportedAs sold / freshnot detected.
Tilapia, as soldSirisangarunroj et al. 2023freshwater fish, 3 Bangkok marketsCollection date unreportedAs sold / freshnot detected.
Tilapia, as soldAbbas et al. 2023ES fishponds, El-SharkiaCollection date unreportedmean.
Tilapia, as soldAbbas et al. 2023KES fishponds, Kafr El-SheikhCollection date unreportedmean.
Tilapia, as soldauthors 2021Tilapia (highest concentration in text)Collection date unreportedmax.
Tilapia, as soldauthors 2021Tilapia (species)Collection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R1, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R2, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R3, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R4, muscleCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldOkonofua et al. 2024dry season, control (Riyom)2019mean.
Tilapia, as soldOkonofua et al. 2024dry season, mining-pit site2019mean.
Tilapia, as soldOkonofua et al. 2024rainy season, control (Riyom)2019mean.
Tilapia, as soldOkonofua et al. 2024rainy season, mining-pit site2019mean.
Tilapia, as soldSawe et al. 2023all five landing sites2022mean.
Tilapia, as soldSawe et al. 2023landing site Jangwani ziwani2022mean.
Tilapia, as soldSawe et al. 2023landing site Mfulo wa Ng'ombe2022mean.
Tilapia, as soldSawe et al. 2023landing site Migunga mitatu2022mean.
Tilapia, as soldSawe et al. 2023landing site Minjingu2022mean.
Tilapia, as soldSawe et al. 2023landing site Oltukai2022mean.
Tilapia, as soldWHO GEMS/FoodSEARO2015Basis not statedmedian.
Tilapia, as soldShaalan 2024Damietta branch of the River Nile, Benha City, Egypt2022Basis not statedmean.
Tilapia, as soldShaalan 2024El-Rayah El-Tawfeeky canal, Benha City, Egypt2022Basis not statedmean.
1 finding · 1 study
Tilapia, driedOkonofua et al. 2024Dry season control (Riyom)2019Basis not statedsample value.
3 findings · 2 studies
Tilapia, peeled or fleshCammilleri et al. 2025Brand 42022–2023As sold / freshrange.
Tilapia, peeled or fleshRegina et al. 2016Bodo River, Ogoniland (oil-polluted)Collection date unreportedBasis not statedsample value.
Tilapia, peeled or fleshRegina et al. 2016Bodo River, Ogoniland (oil-polluted)Collection date unreportedBasis not statedsample value.
2 findings · 2 studies
Tilapia, cookedFDA Total Diet Study6 collection regions2017–2020As sold / freshmedian.
Tilapia, cookedSpungen et al. 2024all samples2018–2020As sold / freshnot detected.
43 findings · 13 studies · 2 spread figures folded in
Tilapia, as soldWHO GEMS/FoodEURO2006–2007As sold / freshmedian.
Tilapia, as soldWHO GEMS/FoodPAHO2017As sold / freshmedian.
Tilapia, as soldCammilleri et al. 2025Tilapia (Tilapia spp.) source2022–2023As sold / freshmean.
Tilapia, as soldIslam et al. 2015Bogra district, all samples2012As sold / freshmean.
Tilapia, as soldIslam et al. 2015Tilapia2012As sold / freshrange.
Tilapia, as soldJMRS et al. 2010foods from CRF patients' homes and domestic environmentCollection date unreportedAs sold / freshmean.Same samples: 0.5 µg/kg (minimum); 90.7 µg/kg (maximum)
Tilapia, as soldJMRS et al. 2010Tilapia (O. niloticus)Collection date unreportedAs sold / freshrange.
Tilapia, as soldSirisangarunroj et al. 2023freshwater fish, 3 Bangkok marketsCollection date unreportedAs sold / freshnot detected.
Tilapia, as soldSirisangarunroj et al. 2023freshwater fish, 3 Bangkok marketsCollection date unreportedAs sold / freshnot detected.
Tilapia, as soldAbbas et al. 2023ES fishponds, El-SharkiaCollection date unreportedmean.
Tilapia, as soldAbbas et al. 2023KES fishponds, Kafr El-SheikhCollection date unreportedmean.
Tilapia, as soldauthors 2021Tilapia (highest concentration in text)Collection date unreportedmax.
Tilapia, as soldauthors 2021Tilapia (species)Collection date unreportedmean.
Tilapia, as soldEgbe et al. 2023all samplesCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R1, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R2, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R3, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R4, muscleCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldOkonofua et al. 2024dry season, control (Riyom)2019mean.
Tilapia, as soldOkonofua et al. 2024dry season, mining-pit site2019mean.
Tilapia, as soldOkonofua et al. 2024rainy season, control (Riyom)2019mean.
Tilapia, as soldOkonofua et al. 2024rainy season, mining-pit site2019mean.
Tilapia, as soldPáez-Osuna et al. 2024All dams muscle (range of dam means)2015–2016range.
Tilapia, as soldPáez-Osuna et al. 2024Dam 1 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 2 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 3 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 4 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 5 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 6 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 7 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 8 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 9 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 10 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 11 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldShaalan 2024Damietta branch of the River Nile, Benha City, Egypt2022Basis not statedmean.
Tilapia, as soldShaalan 2024El-Rayah El-Tawfeeky canal, Benha City, Egypt2022Basis not statedmean.
2 findings · 1 study
Tilapia, driedOkonofua et al. 2024Dry season control (Riyom)2019Basis not statedsample value.
Tilapia, driedOkonofua et al. 2024Rainy season control (Riyom)2019Basis not statedsample value.
3 findings · 2 studies
Tilapia, peeled or fleshCammilleri et al. 2025Brand 42022–2023As sold / freshrange.
Tilapia, peeled or fleshRegina et al. 2016Bodo River, Ogoniland (oil-polluted)Collection date unreportedBasis not statedsample value.
Tilapia, peeled or fleshRegina et al. 2016Bodo River, Ogoniland (oil-polluted)Collection date unreportedBasis not statedsample value.
2 findings · 2 studies
Tilapia, cookedFDA Total Diet Study6 collection regions2017–2020As sold / freshmedian.
Tilapia, cookedSpungen et al. 2024all samples2018–2020As sold / freshmean.
12 findings · 4 studies
Tilapia, as soldCammilleri et al. 2025Tilapia (Tilapia spp.) source2022–2023As sold / freshmean.
Tilapia, as soldIslam et al. 2015Bogra district, all samples2012As sold / freshmean.
Tilapia, as soldIslam et al. 2015Tilapia2012As sold / freshrange.
Tilapia, as soldSirisangarunroj et al. 2023freshwater fish, 3 Bangkok marketsCollection date unreportedAs sold / freshmean.
Tilapia, as soldSirisangarunroj et al. 2023freshwater fish, 3 Bangkok marketsCollection date unreportedAs sold / freshmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
3 findings · 2 studies
Tilapia, peeled or fleshCammilleri et al. 2025Brand 42022–2023As sold / freshrange.
Tilapia, peeled or fleshRegina et al. 2016Bodo River, Ogoniland (oil-polluted)Collection date unreportedBasis not statedsample value.
Tilapia, peeled or fleshRegina et al. 2016Bodo River, Ogoniland (oil-polluted)Collection date unreportedBasis not statedsample value.
1 finding · 1 study
Tilapia, cookedFDA Total Diet Study6 collection regions2017–2020As sold / freshmedian.
1 finding · 1 study
Tilapia, as soldWHO GEMS/FoodWPRO2021As sold / freshmedian.
30 findings · 10 studies · 2 spread figures folded in
Tilapia, as soldWHO GEMS/FoodPAHO2009As sold / freshmedian.
Tilapia, as soldBezerra 2026O. niloticus (Re-Farmed)2013–2023As sold / freshrange.
Tilapia, as soldBezerra 2026Oreochromis niloticus (Re-Wild)2013–2023As sold / freshrange.
Tilapia, as soldPáez-Osuna et al. 2024Blue tilapia (Oreochromis aureus) muscle2013–2014As sold / freshrange.
Tilapia, as soldPáez-Osuna et al. 2024El Comedero dam (post mine-tailings spill)2013–2014As sold / freshmean.
Tilapia, as soldSirisangarunroj et al. 2023freshwater fish, 3 Bangkok marketsCollection date unreportedAs sold / freshnot detected.
Tilapia, as soldSirisangarunroj et al. 2023freshwater fish, 3 Bangkok marketsCollection date unreportedAs sold / freshnot detected.
Tilapia, as soldSmolikova et al. 2016Nile tilapia2015–2016As sold / freshmean.
Tilapia, as soldSmolikova et al. 2016one batch of this species (batch not identified in text)2015–2016As sold / freshsample value.
Tilapia, as soldauthors 2021Tilapia (highest concentration in text)Collection date unreportedmax.
Tilapia, as soldauthors 2021Tilapia (species)Collection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldShumba et al. 2025Kitwe mining area (streams and Kafue River)2023median.
Tilapia, as soldShumba et al. 2025Kitwe mining area (streams and Kafue River)2023mean.Same samples: 45 µg/kg (maximum)
Tilapia, as soldShumba et al. 2025Mining area, Kitwe (tilapia)2023range.
Tilapia, as soldShumba et al. 2025Non-mining area, Chilubula (tilapia)2023range.
Tilapia, as soldShumba et al. 2025Non-mining control area (Chilubula, Kasama)2023median.
Tilapia, as soldShumba et al. 2025Non-mining control area (Chilubula, Kasama)2023mean.Same samples: 54 µg/kg (maximum)
Tilapia, as soldWHO GEMS/FoodPAHO2016Basis not statedmedian.
Tilapia, as soldLin et al. 2021Other Fish: TilapiaCollection date unreportedBasis not statednot detected.
Tilapia, as soldZahran et al. 20230.3 mg/L HgCl2 exposure, basal dietCollection date unreportedBasis not statedmean.
Tilapia, as soldZahran et al. 2023HgCl2 exposure + 5% Nannochloropsis oculata dietCollection date unreportedBasis not statedmean.
Tilapia, as soldZahran et al. 2023HgCl2 exposure + 10% Nannochloropsis oculata dietCollection date unreportedBasis not statedmean.
Tilapia, as soldZahran et al. 2023unexposed control, basal dietCollection date unreportedBasis not statedmean.
1 finding · 1 study
Tilapia, peeled or fleshCammilleri et al. 2025Brand 42022–2023As sold / freshnot detected.
1 finding · 1 study
Tilapia, cookedFDA Total Diet Study6 collection regions2017–2020As sold / freshmedian.
1 finding · 1 study
Tilapia, as soldHsi et al. 2016Taipei City markets, 20142007–2014As sold / freshmean.
2 findings · 1 study
Tilapia, driedOkonofua et al. 2024Dry season control (Riyom)2019Basis not statedsample value.
Tilapia, driedOkonofua et al. 2024Rainy season control (Riyom)2019Basis not statedsample value.
26 findings · 6 studies
Tilapia, as soldIslam et al. 2015Bogra district, all samples2012As sold / freshmean.
Tilapia, as soldIslam et al. 2015Tilapia2012As sold / freshrange.
Tilapia, as soldGupta et al. 2024Site R1, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R2, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R3, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R4, muscleCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportednot detected.
Tilapia, as soldOkonofua et al. 2024dry season, control (Riyom)2019mean.
Tilapia, as soldOkonofua et al. 2024dry season, mining-pit site2019mean.
Tilapia, as soldOkonofua et al. 2024rainy season, control (Riyom)2019mean.
Tilapia, as soldOkonofua et al. 2024rainy season, mining-pit site2019mean.
Tilapia, as soldSawe et al. 2023all five landing sites2022mean.
Tilapia, as soldSawe et al. 2023landing site Jangwani ziwani2022mean.
Tilapia, as soldSawe et al. 2023landing site Mfulo wa Ng'ombe2022mean.
Tilapia, as soldSawe et al. 2023landing site Migunga mitatu2022mean.
Tilapia, as soldSawe et al. 2023landing site Minjingu2022mean.
Tilapia, as soldSawe et al. 2023landing site Oltukai2022mean.
Tilapia, as soldSawe et al. 2023Tilapia, Minjingu2022min.
Tilapia, as soldShaalan 2024Damietta branch of the River Nile, Benha City, Egypt2022Basis not statedmean.
Tilapia, as soldShaalan 2024El-Rayah El-Tawfeeky canal, Benha City, Egypt2022Basis not statedmean.
2 findings · 1 study
Tilapia, driedOkonofua et al. 2024Dry season control (Riyom)2019Basis not statedsample value.
Tilapia, driedOkonofua et al. 2024Rainy season control (Riyom)2019Basis not statedsample value.
1 finding · 1 study
Tilapia, cookedFDA Total Diet Study6 collection regions2017–2020As sold / freshmedian.
9 findings · 4 studies
Tilapia, as soldCammilleri et al. 2025Tilapia (Tilapia spp.) source2022–2023As sold / freshmean.
Tilapia, as soldIslam et al. 2015Bogra district, all samples2012As sold / freshmean.
Tilapia, as soldIslam et al. 2015Tilapia2012As sold / freshrange.
Tilapia, as soldGupta et al. 2024Site R1, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R2, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R3, muscleCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024Site R4, muscleCollection date unreportedmean.
Tilapia, as soldShaalan 2024Damietta branch of the River Nile, Benha City, Egypt2022Basis not statedmean.
Tilapia, as soldShaalan 2024El-Rayah El-Tawfeeky canal, Benha City, Egypt2022Basis not statedmean.
1 finding · 1 study
Tilapia, peeled or fleshCammilleri et al. 2025Brand 42022–2023As sold / freshrange.
1 finding · 1 study
Tilapia, cookedFDA Total Diet Study6 collection regions2017–2020As sold / freshmedian.
4 findings · 1 study
Tilapia, driedOkonofua et al. 2024Dry season (mining pits)2019Basis not statednot detected.
Tilapia, driedOkonofua et al. 2024Dry season control (Riyom)2019Basis not statednot detected.
Tilapia, driedOkonofua et al. 2024Rainy season (mining pits)2019Basis not statednot detected.
Tilapia, driedOkonofua et al. 2024Rainy season control (Riyom)2019Basis not statednot detected.
1 finding · 1 study
Tilapia, cookedFDA Total Diet Study6 collection regions2017–2020As sold / freshmedian.
29 findings · 6 studies
Tilapia, as soldIslam et al. 2015Bogra district, all samples2012As sold / freshmean.
Tilapia, as soldAbbas et al. 2023ES fishponds, El-SharkiaCollection date unreportedmean.
Tilapia, as soldAbbas et al. 2023KES fishponds, Kafr El-SheikhCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 1 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 2 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 3 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 4 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 5 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 6 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 7 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 8 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 9 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 10 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 11 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldSawe et al. 2023all five landing sites2022mean.
Tilapia, as soldSawe et al. 2023landing site Jangwani ziwani2022mean.
Tilapia, as soldSawe et al. 2023landing site Mfulo wa Ng'ombe2022mean.
Tilapia, as soldSawe et al. 2023landing site Migunga mitatu2022mean.
Tilapia, as soldSawe et al. 2023landing site Minjingu2022mean.
Tilapia, as soldSawe et al. 2023landing site Oltukai2022mean.
Tilapia, as soldShaalan 2024Damietta branch of the River Nile, Benha City, Egypt2022Basis not statedmean.
Tilapia, as soldShaalan 2024El-Rayah El-Tawfeeky canal, Benha City, Egypt2022Basis not statedmean.
11 findings · 4 studies
Tilapia, as soldAbbas et al. 2023ES fishponds, El-SharkiaCollection date unreportedmean.
Tilapia, as soldAbbas et al. 2023KES fishponds, Kafr El-SheikhCollection date unreportedmean.
Tilapia, as soldEgbe et al. 2023all samplesCollection date unreportedmean.
Tilapia, as soldGupta et al. 2024all four Cauvery River sites combined (R1-R4), pre-monsoonCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
9 findings · 2 studies
Tilapia, as soldAbbas et al. 2023ES fishponds, El-SharkiaCollection date unreportedmean.
Tilapia, as soldAbbas et al. 2023KES fishponds, Kafr El-SheikhCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
28 findings · 5 studies
Tilapia, as soldAbbas et al. 2023ES fishponds, El-SharkiaCollection date unreportedmean.
Tilapia, as soldAbbas et al. 2023KES fishponds, Kafr El-SheikhCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 1 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 2 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 3 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 4 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 5 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 6 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 7 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 8 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 9 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 10 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldPáez-Osuna et al. 2024Dam 11 (reservoir with mining sub-basin)2015–2016mean.
Tilapia, as soldSawe et al. 2023all five landing sites2022mean.
Tilapia, as soldSawe et al. 2023landing site Jangwani ziwani2022mean.
Tilapia, as soldSawe et al. 2023landing site Mfulo wa Ng'ombe2022mean.
Tilapia, as soldSawe et al. 2023landing site Migunga mitatu2022mean.
Tilapia, as soldSawe et al. 2023landing site Minjingu2022mean.
Tilapia, as soldSawe et al. 2023landing site Oltukai2022mean.
Tilapia, as soldShaalan 2024Damietta branch of the River Nile, Benha City, Egypt2022Basis not statedmean.
Tilapia, as soldShaalan 2024El-Rayah El-Tawfeeky canal, Benha City, Egypt2022Basis not statedmean.
1 finding · 1 study
Tilapia, as soldPáez-Osuna et al. 2024El Comedero dam (post mine-tailings spill)2013–2014As sold / freshmean.
7 findings · 1 study
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
Tilapia, as soldMendoza et al. 2023Calapan City vendors, 11 barangaysCollection date unreportedmean.
6 findings · 2 studies
Tilapia, as soldOkonofua et al. 2024dry season, control (Riyom)2019mean.
Tilapia, as soldOkonofua et al. 2024dry season, mining-pit site2019mean.
Tilapia, as soldOkonofua et al. 2024rainy season, control (Riyom)2019mean.
Tilapia, as soldOkonofua et al. 2024rainy season, mining-pit site2019not detected.
Tilapia, as soldShaalan 2024Damietta branch of the River Nile, Benha City, Egypt2022Basis not statedmean.
Tilapia, as soldShaalan 2024El-Rayah El-Tawfeeky canal, Benha City, Egypt2022Basis not statedmean.
2 findings · 1 study
Tilapia, as soldShaalan 2024Damietta branch of the River Nile, Benha City, Egypt2022Basis not statedmean.
Tilapia, as soldShaalan 2024El-Rayah El-Tawfeeky canal, Benha City, Egypt2022Basis not statedmean.
Shared dataset methods and interpretation

Source summaries retain their original statistic, material, basis and censoring. Each source drawer identifies methods and overlapping samples. No matched reference or pooled distribution is inferred.

HMI tilapia Pb reference · Tilapia, as sold

Reference and scope

HMI tilapia Pb reference · Tilapia, as sold. Tilapia, as sold; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤10≤11.2≤12.3
Alternative weighting≤10≤11.2≤12.3

12 reference units; 2 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food1050%
Sirisangarunroj et al. 2023250%

Methods

HMI pools subgroup medians for tilapia, as sold on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

2 sampling families with different designs; none is a probability sample of world supply. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-e2a18cd0d1e3:81fc68b9f5d3

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia Pb reference · Tilapia, as sold, dry weight

Reference and scope

HMI tilapia Pb reference · Tilapia, as sold, dry weight. Tilapia, as sold; Dry weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤1000≤1000≤1000
Alternative weighting≤1000≤1000≤1000

4 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
Mendoza et al. 20234100%

Methods

HMI pools subgroup medians for tilapia, as sold on a dry weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

Mendoza et al. 2023 is the only compatible sampling family for tilapia, as sold on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-f286bf4488d5:fbe0c2b4c94d

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia Pb reference · Tilapia, as sold, basis not stated

Reference and scope

HMI tilapia Pb reference · Tilapia, as sold, basis not stated. Tilapia, as sold; Basis not stated by the source, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference222
Alternative weighting222

1 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food1100%

Methods

HMI pools subgroup medians for tilapia, as sold on a basis not stated by the source basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

WHO GEMS/Food is the only compatible sampling family for tilapia, as sold on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-1fc7e32fb82c:36315322a58d

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia Pb reference · Tilapia, cooked

Reference and scope

HMI tilapia Pb reference · Tilapia, cooked. Tilapia, cooked; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤4≤4≤4
Alternative weighting≤4≤4≤4

28 reference units; 2 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
FDA Total Diet Study2750%
Spungen et al. 2024150%

Methods

HMI pools subgroup medians for tilapia, cooked on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

2 sampling families with different designs; none is a probability sample of world supply. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-6ef096f064d1:03793878d8c0

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia Cd reference · Tilapia, as sold

Reference and scope

HMI tilapia Cd reference · Tilapia, as sold. Tilapia, as sold; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤0.9≤0.95≤25
Alternative weighting≤0.9≤0.95≤25

5 reference units; 2 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food350%
Sirisangarunroj et al. 2023250%

Methods

HMI pools subgroup medians for tilapia, as sold on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

2 sampling families with different designs; none is a probability sample of world supply. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-487c9dace259:0db2b0d3ad27

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia Cd reference · Tilapia, cooked

Reference and scope

HMI tilapia Cd reference · Tilapia, cooked. Tilapia, cooked; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤1≤1≤1
Alternative weighting≤1≤1≤1

27 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
FDA Total Diet Study27100%

Methods

HMI pools subgroup medians for tilapia, cooked on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

FDA Total Diet Study is the only compatible sampling family for tilapia, cooked on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-c5a540ce73c9:3fe588b8c1a3

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia tAs reference · Tilapia, as sold, dry weight

Reference and scope

HMI tilapia tAs reference · Tilapia, as sold, dry weight. Tilapia, as sold; Dry weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤1000≤1000≤1000
Alternative weighting≤1000≤1000≤1000

5 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
Mendoza et al. 20235100%

Methods

HMI pools subgroup medians for tilapia, as sold on a dry weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

Mendoza et al. 2023 is the only compatible sampling family for tilapia, as sold on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-4c87b66dc251:1014f48907d0

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia tAs reference · Tilapia, cooked

Reference and scope

HMI tilapia tAs reference · Tilapia, cooked. Tilapia, cooked; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference74100150
Alternative weighting74100130

27 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
FDA Total Diet Study27100%

Methods

HMI pools subgroup medians for tilapia, cooked on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

FDA Total Diet Study is the only compatible sampling family for tilapia, cooked on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-09efe8eed0fd:2bcf5f0a9a7a

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia iAs reference · Tilapia, as sold

Reference and scope

HMI tilapia iAs reference · Tilapia, as sold. Tilapia, as sold; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤20≤20≤20
Alternative weighting≤20≤20≤20

1 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food1100%

Methods

HMI pools subgroup medians for tilapia, as sold on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

WHO GEMS/Food is the only compatible sampling family for tilapia, as sold on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-78c97594fbbf:a10167572691

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia tHg reference · Tilapia, as sold

Reference and scope

HMI tilapia tHg reference · Tilapia, as sold. Tilapia, as sold; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤3.13.1–12.4 (bounded)50
Alternative weighting≤3.13.1–12.4 (bounded)50

4 reference units; 3 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food133%
Sirisangarunroj et al. 2023233%
Smolikova et al. 2016133%

Methods

HMI pools subgroup medians for tilapia, as sold on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

3 sampling families with different designs; none is a probability sample of world supply. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-31124a02e4fc:f42743acd8a7

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia tHg reference · Tilapia, as sold, dry weight

Reference and scope

HMI tilapia tHg reference · Tilapia, as sold, dry weight. Tilapia, as sold; Dry weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤1000≤1000≤1000
Alternative weighting≤1000≤1000≤1000

6 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
Mendoza et al. 20236100%

Methods

HMI pools subgroup medians for tilapia, as sold on a dry weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

Mendoza et al. 2023 is the only compatible sampling family for tilapia, as sold on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-dc0473dd6ff3:ef86742d09de

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia tHg reference · Tilapia, as sold, basis not stated

Reference and scope

HMI tilapia tHg reference · Tilapia, as sold, basis not stated. Tilapia, as sold; Basis not stated by the source, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤50≤50≤50
Alternative weighting≤50≤50≤50

1 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food1100%

Methods

HMI pools subgroup medians for tilapia, as sold on a basis not stated by the source basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

WHO GEMS/Food is the only compatible sampling family for tilapia, as sold on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-fdc8aa5f28cc:4e44f47ec44e

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia tHg reference · Tilapia, cooked

Reference and scope

HMI tilapia tHg reference · Tilapia, cooked. Tilapia, cooked; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference2.75.19.6
Alternative weighting2.75.059.6

27 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
FDA Total Diet Study27100%

Methods

HMI pools subgroup medians for tilapia, cooked on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

FDA Total Diet Study is the only compatible sampling family for tilapia, cooked on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-b23e2608110a:ac20314d38ef

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia Ni reference · Tilapia, as sold, dry weight

Reference and scope

HMI tilapia Ni reference · Tilapia, as sold, dry weight. Tilapia, as sold; Dry weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤3000≤3000≤3000
Alternative weighting≤3000≤3000≤3000

6 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
Mendoza et al. 20236100%

Methods

HMI pools subgroup medians for tilapia, as sold on a dry weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

Mendoza et al. 2023 is the only compatible sampling family for tilapia, as sold on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-21a93807188a:cd965db25c06

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia Ni reference · Tilapia, cooked

Reference and scope

HMI tilapia Ni reference · Tilapia, cooked. Tilapia, cooked; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤40≤40≤40
Alternative weighting≤40≤40≤40

27 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
FDA Total Diet Study27100%

Methods

HMI pools subgroup medians for tilapia, cooked on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

FDA Total Diet Study is the only compatible sampling family for tilapia, cooked on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-ce9c7ef43c79:8c1d3aa3103a

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia Cr reference · Tilapia, cooked

Reference and scope

HMI tilapia Cr reference · Tilapia, cooked. Tilapia, cooked; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤50≤50≤50
Alternative weighting≤50≤50≤50

27 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
FDA Total Diet Study27100%

Methods

HMI pools subgroup medians for tilapia, cooked on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

FDA Total Diet Study is the only compatible sampling family for tilapia, cooked on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-6a7430431f63:eaecf917b538

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI tilapia U reference · Tilapia, cooked

Reference and scope

HMI tilapia U reference · Tilapia, cooked. Tilapia, cooked; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤1≤1≤1
Alternative weighting≤1≤1≤1

27 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
FDA Total Diet Study27100%

Methods

HMI pools subgroup medians for tilapia, cooked on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1 to Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

FDA Total Diet Study is the only compatible sampling family for tilapia, cooked on this basis in the completed tilapia ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:tilapia-f3f3df96f0d5:7e3c31f55e29

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

1 dataset

How metals reach tilapia

The evidence on how metals reach tilapia comes from studies that compared exposed and ordinary settings. Tilapia, as sold from 0.3 mg/L HgCl2 exposure, basal diet (experiment) had total mercury higher at 1,500 µg/kg, against 40 µg/kg for unexposed control, basal diet in the same study.11Zahran E, Ahmed F, Hassan Z, Ibrahim I, Khaled AA, Palić D, El Sebaei MG · 2023Toxicity Evaluation, Oxidative, and Immune Responses of Mercury on Nile Tilapia: Modulatory Role of Dietary Nannochloropsis oculataNot reportedRead source → In another study, tilapia, dried from Dry season control (Riyom) (mining-affected area) had nickel higher at 15 µg/kg, against 5 µg/kg for Rainy season control (Riyom) in the same study.12Okonofua ES, Komolafe AS, Emeribe CN, Ogbomida ET, Butu AW · 2024Analysis of Bioaccumulation of Heavy Metals in Water, Cabbage (Brassica oleracea var. capitata) and Tilapia Fish (Oreochromis niloticus) from Unreclaimed Mining PitsEarth Sciences PakistanRead source → A third study found that tilapia, as sold from Kitwe mining area (streams and Kafue River) (mining-affected area) had total mercury higher at 15 µg/kg, against 7 µg/kg for Non-mining control area (Chilubula, Kasama) in the same study.7Shumba T, Kayumba AV, Kalinda C, Mukosha M, Mbewe M, Mwila C, Handema R, Mwenye OJ, Mbewe M · 2025Assessment of total mercury (Hg) in soil, sediment, and tilapia fish (Oreochromis niloticus) and health risk assessment among residents of Kitwe mining area, ZambiaEnvironmental Science and Pollution ResearchRead source →

These are observational comparisons from single studies; the size of the difference depends on the site, metal and distance.

Which forms and regions measured lower

The HMI reference for lead in tilapia, cooked pools 28 subgroup units from 2 sampling families, with a median of below 4 µg/kg and a middle half spanning below 4 (lower quartile) and below 4 µg/kg (upper quartile).2U.S. Food and Drug Administration · 2022FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →10Spungen JH, et al. · 2024Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source → For lead in tilapia, as sold, the reference median was below 11.2 µg/kg, with a middle half from below 10 to below 12.3 µg/kg across 12 units.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →5Sirisangarunroj P, Monboonpitak N, Karnpanit W, Sridonpai P, Singhato A, Laitip N, Ornthai N, Yafa C, Judprasong K · 2023Toxic Heavy Metals and Their Risk Assessment of Exposure in Selected Freshwater and Marine Fish in ThailandFoods 2023, 12, 3967Read source → For lead in tilapia, as sold, the reference median was below 1,000 µg/kg, with a middle half from below 1,000 to below 1,000 µg/kg across 4 units.9Mendoza LC, Nolos RC, Villaflores OB, Apostol EMD, Senoro DB · 2023Detection of Heavy Metals, Their Distribution in Tilapia spp., and Health Risks AssessmentToxics 2023, 11(3), 286Read source →

Among GEMS/Food reporting regions, tilapia, as sold had the lowest lead subgroup median in PAHO (1 µg/kg) and the highest in SEARO (2 µg/kg); reporting regions are markets, not growing areas.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →

In one study, lead across 5 groups of tilapia ranged from 580 µg/kg (landing site Migunga mitatu) to 730 µg/kg (landing site Oltukai); the lowest is the lowest observed in that study, not an established sourcing preference.15Sawe S, Amasi A, Wynants M · 2023Assessment of Potentially Toxic Metals in Fish from Lake Manyara, Northern TanzaniaBulletin of Environmental Contamination and ToxicologyRead source →

Processing, cooking and preparation

No processing study for metals in this food is in the library yet.

Mitigation for tilapia

Lot testing against the applicable limit is the check that can be verified.

No measured way to lower metals in this food is in the library yet.

Trade-offs and limits of controls

Avoiding exposed growing areas lowered the metal measured in the studies available, but no study measured the cost or supply effect of doing so.11Zahran E, Ahmed F, Hassan Z, Ibrahim I, Khaled AA, Palić D, El Sebaei MG · 2023Toxicity Evaluation, Oxidative, and Immune Responses of Mercury on Nile Tilapia: Modulatory Role of Dietary Nannochloropsis oculataNot reportedRead source → Metals do not move together, so a lot that passes a lead limit says little about cadmium, arsenic or nickel unless those are tested as well.

Testing tilapia for metals

Results depend on the method and its reporting limit. Reporting limits for lead ranged from 1 µg/kg (WHO GEMS/Food) to 1,000 µg/kg (Mendoza et al. 2023), so a non-detect from a less sensitive method says much less.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →9Mendoza LC, Nolos RC, Villaflores OB, Apostol EMD, Senoro DB · 2023Detection of Heavy Metals, Their Distribution in Tilapia spp., and Health Risks AssessmentToxics 2023, 11(3), 286Read source → Reporting limits for cadmium ranged from 0.9 µg/kg (Sirisangarunroj et al. 2023) to 2,000 µg/kg (Mendoza et al. 2023), so a non-detect from a less sensitive method says much less.5Sirisangarunroj P, Monboonpitak N, Karnpanit W, Sridonpai P, Singhato A, Laitip N, Ornthai N, Yafa C, Judprasong K · 2023Toxic Heavy Metals and Their Risk Assessment of Exposure in Selected Freshwater and Marine Fish in ThailandFoods 2023, 12, 3967Read source →9Mendoza LC, Nolos RC, Villaflores OB, Apostol EMD, Senoro DB · 2023Detection of Heavy Metals, Their Distribution in Tilapia spp., and Health Risks AssessmentToxics 2023, 11(3), 286Read source → Reporting limits for total arsenic ranged from 3 µg/kg (FDA Total Diet Study) to 1,000 µg/kg (Mendoza et al. 2023), so a non-detect from a less sensitive method says much less.2U.S. Food and Drug Administration · 2022FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →9Mendoza LC, Nolos RC, Villaflores OB, Apostol EMD, Senoro DB · 2023Detection of Heavy Metals, Their Distribution in Tilapia spp., and Health Risks AssessmentToxics 2023, 11(3), 286Read source →

A useful lot result names the form, the basis and a quantification limit well below the limit that applies.

Buying and verifying tilapia

No maximum level for metals in tilapia was verified from primary text for this page; buyers should confirm the limit that applies in the destination market.

Exposure from tilapia

No source in the library converted tilapia concentrations into a verified estimate of intake for a defined population. Concentrations describe the food, not individual risk.

Evidence review and remaining gaps

Every source record that names tilapia was decided on its content: 24 occurrence extracted, 24 records in all. The occurrence table renders every extracted result; held values remain visible with their reason.

References identify the sources used in these answers. The Sources index preserves additional discovery links; inclusion there does not mean a source has been reviewed for this assessment. Corrections, completed searches, new direct evidence and changes in requirements should reopen the relevant answer.

Tilapia FAQs

What heavy metals are found in tilapia?

The library reports lead, cadmium, total arsenic, inorganic arsenic, total mercury, methylmercury, mercury, nickel, chromium, uranium, Cu, Fe, Mn, Zn, Se, Ba, Hg and Mg in tilapia, most often lead, cadmium and total arsenic.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2U.S. Food and Drug Administration · 2022FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Cammilleri G, Tortorici M, Pantano L, Galluzzo FG, Pulvirenti A, Buscemi MD, Lo Dico GM, Macaluso A, Calabrese V, Jacob UM, Ferrantelli V · 2025Toxic metals and metalloids in collagen supplements of fish and jellyfish origin: Risk assessment for daily intakeOpen MedicineRead source →4Islam MS, Ahmed MK, Habibullah-Al-Mamun M, Raknuzzaman M · 2015The concentration, source and potential human health risk of heavy metals in the commonly consumed foods in BangladeshEcotoxicology and Environmental SafetyRead source → WHO GEMS/Food submissions reported lead in tilapia, as sold from 150 results in 2 reporting regions, with subgroup medians from 1 to 2 µg/kg.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →

How do heavy metals get into tilapia?

In the studies available, tilapia from contaminated or exposed settings carried more metal than tilapia from the same study’s control.7Shumba T, Kayumba AV, Kalinda C, Mukosha M, Mbewe M, Mwila C, Handema R, Mwenye OJ, Mbewe M · 2025Assessment of total mercury (Hg) in soil, sediment, and tilapia fish (Oreochromis niloticus) and health risk assessment among residents of Kitwe mining area, ZambiaEnvironmental Science and Pollution ResearchRead source → Tilapia, as sold from Kitwe mining area (streams and Kafue River) (mining-affected area) had total mercury higher at 14 µg/kg, against 8 µg/kg for Non-mining control area (Chilubula, Kasama) in the same study.7Shumba T, Kayumba AV, Kalinda C, Mukosha M, Mbewe M, Mwila C, Handema R, Mwenye OJ, Mbewe M · 2025Assessment of total mercury (Hg) in soil, sediment, and tilapia fish (Oreochromis niloticus) and health risk assessment among residents of Kitwe mining area, ZambiaEnvironmental Science and Pollution ResearchRead source →

Which regions report the lowest levels in tilapia?

Among GEMS/Food reporting regions, tilapia, as sold had the lowest lead subgroup median in PAHO (1 µg/kg) and the highest in SEARO (2 µg/kg); reporting regions are markets, not growing areas.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →

How much of the arsenic in tilapia is inorganic?

Inorganic arsenic, the more toxic form, was measured in 1 result from 1 source, far fewer than total arsenic.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → WHO GEMS/Food submissions reported inorganic arsenic in tilapia, as sold from 1 result in 1 reporting region, with subgroup medians below 20 µg/kg, mostly non-detects.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →

References

Works cited on this page, in citation-number order. See Sources for this page’s source inventory. Each title links to a source record with bibliographic details, reported findings, and document provenance.

  1. GEMS/Food Contaminants database heavy-metal exportsWorld Health Organization · GEMS/Food Contamination Monitoring and Assessment Programme · 2026 · extranet.who.intDataset
  2. FY2018-FY2020 TDS Elements Analytical ResultsU.S. Food and Drug Administration · FDA Total Diet Study · 2022 · www.fda.govDataset
  3. Toxic metals and metalloids in collagen supplements of fish and jellyfish origin: Risk assessment for daily intakeCammilleri G, Tortorici M, Pantano L, Galluzzo FG, Pulvirenti A, Buscemi MD, et al. · Open Medicine · 2025 · doi.org/10.1515/med-2025-1141Peer-reviewed
  4. The concentration, source and potential human health risk of heavy metals in the commonly consumed foods in BangladeshIslam MS, Ahmed MK, Habibullah-Al-Mamun M, and Raknuzzaman M · Ecotoxicology and Environmental Safety · 2015 · doi.org/10.1016/j.ecoenv.2015.09.022Peer-reviewed
  5. Toxic Heavy Metals and Their Risk Assessment of Exposure in Selected Freshwater and Marine Fish in ThailandSirisangarunroj P, Monboonpitak N, Karnpanit W, Sridonpai P, Singhato A, Laitip N, et al. · Foods 2023, 12, 3967 · 2023 · doi.org/10.3390/foods12213967Peer-reviewed
  6. Heavy Metals Assessment and Health Risk to Consumers of Two Commercial Fish Species from Polyculture Fishponds in El-Sharkia and Kafr El-Sheikh, Egypt: Physiological and Biochemical StudyAbbas MMM, EL-Sharkawy SM, Mohamed HR, Elaraby BE, Shaban WM, Metwally MG, et al. · Biological Trace Element Research · 2023 · doi.org/10.1007/s12011-023-04007-1Peer-reviewed
  7. Assessment of total mercury (Hg) in soil, sediment, and tilapia fish (Oreochromis niloticus) and health risk assessment among residents of Kitwe mining area, ZambiaShumba T, Kayumba AV, Kalinda C, Mukosha M, Mbewe M, Mwila C, et al. · Environmental Science and Pollution Research · 2025 · doi.org/10.1007/s11356-025-36506-0Peer-reviewed
  8. International Journal of Fisheries and Aquatic Studies 2021; 9(4): 230-233Unknown authors · Peer-reviewed article · 2021 · doi.org/10.22271/fish.2021.v9.i4c.2540Peer-reviewed
  9. Detection of Heavy Metals, Their Distribution in Tilapia spp., and Health Risks AssessmentMendoza LC, Nolos RC, Villaflores OB, Apostol EMD, and Senoro DB · Toxics 2023, 11(3), 286 · 2023 · doi.org/10.3390/toxics11030286Peer-reviewed
  10. Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Spungen JH and et al. · Food Additives & Contaminants: Part A · 2024 · doi.org/10.1080/19440049.2024.2396910Peer-reviewed
  11. Toxicity Evaluation, Oxidative, and Immune Responses of Mercury on Nile Tilapia: Modulatory Role of Dietary Nannochloropsis oculataZahran E, Ahmed F, Hassan Z, Ibrahim I, Khaled AA, Palić D, et al. · 2023 · doi.org/10.1007/s12011-023-03771-4Peer-reviewed
  12. Analysis of Bioaccumulation of Heavy Metals in Water, Cabbage (Brassica oleracea var. capitata) and Tilapia Fish (Oreochromis niloticus) from Unreclaimed Mining PitsOkonofua ES, Komolafe AS, Emeribe CN, Ogbomida ET, and Butu AW · Earth Sciences Pakistan · 2024 · doi.org/10.26480/esp.02.2024.134.139Peer-reviewed
  13. Hazardous effects of heavy metal pollution on Nile tilapia in the aquatic ecosystem of the Eastern Delta in EgyptShaalan WM · BMC Veterinary Research · 2024 · doi.org/10.1186/s12917-024-04367-3Peer-reviewed
  14. Mercury and selenium in three fish species from a dam 20 months after a mine-tailing spill in the SE Gulf of California ecoregion, MexicoPáez-Osuna F, Bergés-Tiznado ME, Valencia-Castañeda G, Fregoso-López MG, León-Cañedo JA, Fierro-Sañudo JF, et al. · 2024 · doi.org/10.1007/s11356-023-31487-4Peer-reviewed
  15. Assessment of Potentially Toxic Metals in Fish from Lake Manyara, Northern TanzaniaSawe S, Amasi A, and Wynants M · Bulletin of Environmental Contamination and Toxicology · 2023 · doi.org/10.1007/s00128-023-03794-6Peer-reviewed

Sources

Browse Tilapia Sources for sources cited on this page and additional discovery candidates. The searchable index distinguishes verified citation use from discovery relationships whose relevance has not been established.

Update history

22 October 2026: Rebuilt from every tilapia record in the library: 24 occurrence sources, references by form and basis, same-study contrasts.