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Seafood

Completeness scorecard

Deterministic gap audit — no score is composite, no cell is LLM-judged. Each chip is re-derivable by re-running tools/evidence/build-ingredient-scorecard.mjs. review: residuals and missing data are worked autonomously via data/evidence/ingredient-scorecard-review-flags.csv and wiki/completeness-gaps.md.

DimensionStatusWhat’s there (auditable counts)What’s missing
D1 Analyte coverage (tier: common)OK8/10 HMTc analytes, total n=186
D2 Regional coverageOK109 jurisdictions, top EU 21%
D3 Anthropogenic evidenceGAP10 drinking-water + 5 sediment + 1 soil + 1 atmospheric-deposition; no supply-chain linklink a supply-chain/ hub page
D4 Background mechanismGAPsection present, 0 drivers, 16 upstream source(s)drivers[] empty
D5 Pooling depthPOOLABLEPb CONFIDENT, Cd CONFIDENT, iAs CONFIDENT, tHg CONFIDENT, Ni POOLABLE, Al POOLABLE, Cr POOLABLE, Sn POOLABLE, tAs CONFIDENT
D6 SpeciationOKiAs, tHg, tAs declared
D7 Basis declarationGAP0/10 populated cells declare a basis token10 populated cell(s) lack a basis token: Pb, Cd, iAs, tHg, Ni, Al, Cr, Sn, tAs, U
D8 Provenance integrityGAP8 claims checked, 8 supported; 1 citations, 0 orphan, 0 foreign1 contributing source(s) malformed (strict): open2017-open-infants-dietary-arsenic
D9 MitigationGAP0 cited lever(s), 4 mitigation/ link(s)section present but no source-cited lever
D10 Regulatory coverageOK3 rule link(s), 0 metal(s) coveredunmapped analytes: Pb, Cd, iAs, tHg, Ni, Al, Cr, Sn, tAs
D11 Standards-readinessPARTIALpriority: Pb, Cd, iAs, tHg, Ni, Al, Cr, Sn, tAs; pairing 0 paired, 9 single, 0 unpairedbasis: 10 populated cell(s) lack a basis token: Pb, Cd, iAs, tHg, Ni, Al, Cr, Sn, tAs, U
Principle balanceflagconsumer-protection 1.00, contamination-reduction 0.00, brand-value 0.00, legal-defensibility 0.50, scale 0.75spread 1.00 — starved: contamination-reduction

This is a structural ingredient node created so product pages can link to a real wiki target. Occurrence values remain pending until a source is promoted for this ingredient.

Heavy metal contamination profile

Per-analyte snapshot derived from the machine-readable contamination_profile in the frontmatter above. data gap indicates the literature has been reviewed for this commodity-analyte combination and no usable occurrence data was found (a finding, not a placeholder). The Key sources column shows the top 2-3 contributing sources by year and sample size, with numbered wikilink aliases.

AnalyteCoverageTypical (ppb)p95 (ppb)ConfidenceKey sources
Pbn=2820–150300high1, 2, 3
Cdn=3150–5001500high1, 2, 3
iAsn=185–50100high1, 2, 3
tAsn=35500–500010000high1, 2, 3
tHgn=4450–300700high1, 2, 3
Nin=1050–500medium1, 2, 3
Aln=7100–1000medium1, 2, 3
Crn=650–300medium1, 2, 3
Snn=7100–500medium1, 2, 3
Udata gap

Routing

This node is linked from fish-containing-baby-foods.

Contamination Profile State

The machine-readable contamination profile is pending. Ingredient-level values belong here once parsed; finished-product values belong on the relevant product-category page.

Sources

Auto-generated from source-page frontmatter. The “Used on this page for” column is populated by the orchestrator’s POPULATE-SOURCE-LEGEND action; pending entries appear as *[awaiting synthesis]*.

#CitationYearTypeUsed on this page for
1ANSES 2026. Opinion of the French Agency for Food, Environmental and Occupational Health & Safety on the results of the Third French Total Diet Study (TDS3) - Acrylamide, aluminium, silver, cadmium, mercury and lead, ANSES Opinion, Request No 2019-SA-00102026Government reportFR Al, Ag, Cd, Pb, tHg, iHg, MeHg occurrence in French TDS3 foods selected from 276 foods across 44 groups, with 718 samples collected in Loiret, Puy-de-Dome, and… (n=718)
2Balzani et al. 2026. Metals and Metalloids Accumulation and Biomagnification in Three Commercially Important Fishes from a Turkish Brackish Lake, Environmental Science and Pollution Research2026Peer-reviewedtAs, Pb, Cr, and Ni in dorsal muscle of three commercially fished species from Dalyan Lake, Türkiye (n=27); Cr the only metal showing biomagnification, As and Pb showing trophic dilution
3Hernández-Montoya et al. 2026. Heavy Metal Contamination in Foods: Advances in Detection Technologies, Regulatory Challenges, Health Risks, and Implications for Sustainable Food Safety, Sustainability2026Peer-reviewedcodex/EU/US Pb, Cd, tAs, tHg, MeHg, Ni occurrence in Scoping review of 121 peer-reviewed studies (Scopus, Web of Science, ScienceDirect, SpringerLink, Wiley Online Library, Google Scholar; published…
4Jiang et al. 2026. Health risks of exposure to organotin compounds via seafood consumption after their legal ban, Marine Pollution Bulletin2026Peer-reviewedHK Sn occurrence in Twenty-three Hong Kong marine species collected in 2023, including molluscs, crustaceans, and fishes; extracted PDF is a ScienceDirect… (n=23)
5Rüstemli et al. 2026. Mineral and heavy metal content in canned tuna: Implications for veterinary public health and consumer safety, Veterinary Research Communications2026Peer-reviewedTR Mg, Al, Cr, Mn, Fe, Cu, Zn, Co, Ni, tAs, Sn, Ba, tHg, Pb occurrence in 105 canned tuna samples (35 water-packed, 35 oil-packed, 35 sauce-packed) from seven domestic Turkish brands, collected in Van… (n=105)
6Akkaya et al. 2025. Determination of Heavy Metal Levels and Assessment of L. monocytogenes and Salmonella spp. Presence in Fishery Products and Mussels from the Marmara Region, Türkiye, Toxics2025Peer-reviewedTR Pb, Cd, tHg, tAs, Cu occurrence in Fishery products and mussels collected from provinces in the Marmara region of Türkiye between March 2020 and November… (n=625)
7Dietz et al. 2025. Stable isotopes unveil ocean transport of legacy mercury into Arctic food webs, Nature Communications2025Peer-reviewedGL tHg, MeHg occurrence in Arctic char, shorthorn sculpin, ringed seal, glaucous gull, polar bear, and peat samples across Greenland (Central West, Northwest,…
8Dinesh et al. 2025. Comparative evaluation of heavy metal concentration in three commercially important fish: insights from organ-specific and interspecies variability, Frontiers in Marine Science2025Peer-reviewedIN Cd, Pb, Cr, Ni, Al occurrence in three commercially important fish species assessed by tissue and organ
9Garofalo et al. 2025. Monitoring of Cadmium, Lead, and Mercury Levels in Seafood Products: A Ten-Year Analysis, Foods 14(3):4512025Peer-reviewedIT/EU Cd, Pb, tHg, MeHg occurrence in 5,854 seafood samples (9,809 analyses: 4,300 THg + 3,338 Cd + 2,171 Pb) collected and analyzed by Istituto… (n=5854)
10MacDonald et al. 2025. Occurrence of chemical contaminants in wild-caught fishery products of relevance to Scottish and wider UK Fishing Waters: A Review, Fera Science Ltd report to Food Standards Scotland (Report FR/002826)2025Agency reportGB/EU tHg, MeHg, Cd, Pb, tAs, iAs, Ni, Cr occurrence in Narrative + tabular review of chemical contaminants in wild-caught and smoked fish, shellfish, crustaceans, and cephalopods from Scottish… (n=192)
11Masri et al. 2025. Assessing Dietary Consumption of Toxicant-Laden Foods and Beverages by Age and Ethnicity in California: Implications for Proposition 65, Nutrients2025Peer-reviewedUS Pb, Cd, tAs, MeHg occurrence in Cross-sectional online dietary survey (Qualtrics) administered between 1 March and 15 June 2023 to Southern California residents (adults… (n=186)
12Mititelu et al. 2025. Assessing Heavy Metal Contamination in Food: Implications for Human Health and Environmental Safety, Toxics2025ReviewEU/US/RO Pb, Cd, tAs, iAs, tHg, MeHg, Ni, Cr, Sn occurrence in Narrative review; no primary sample collection. Synthesizes published literature and regulatory data across multiple countries.
13Nour et al. 2025. Nutritional and heavy metal composition of seaweeds from the coast of Djibouti, Food Science and Nutrition2025Peer-reviewedCr, Ni, As, Cd, and Pb in six seaweed species from the Djiboutian coastline; As notably elevated in Turbinaria decurrens (70.2 µg/g DW), one of the first datasets for edible marine algae from the Horn of Africa
14Olgunoglu et al. 2025. Seasonal Variability and Sex-Specific Accumulation of Trace Metals in Black Scorpionfish (Scorpaena porcus Linnaeus, 1758) from Izmir Bay (Aegean Sea), Türkiye: Implications for Human Health Risk Assessment, Life2025Peer-reviewedTR Cd, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, Zn occurrence in Black scorpionfish (Scorpaena porcus) collected seasonally from Izmir Bay, Aegean Sea, Türkiye, 2023–2024; 28 males and 24 females (n=52)
15Scovronick et al. 2025. Assessment of human exposure to uncommon industrial toxicants in Glynn County, Georgia, Environmental Pollution2025Peer-reviewedBiomonitoring of Pb, Cd, and tHg in 96 adults near Superfund sites in coastal Georgia; seafood consumption a significant predictor of PCB exposure, blood Hg comparable to US general population
16Singhato et al. 2025. Risk Assessment of Toxic Heavy Metal Exposure in Selected Seafood Species from Thailand, Foods2025Peer-reviewedTH tAs, Cd, tHg, Pb occurrence in 20 commonly consumed seafood species from Thailand (4 shrimp/prawn, 4 crab, 3 squid, 8 shellfish, 2 marine fish),… (n=60)
17Ventura et al. 2025. Dietary Exposure to Essential and Toxic Trace Elements in the Portuguese Population: A Total Diet Study Approach, Foods2025Peer-reviewedPortuguese TDS — tAs, Cd, Pb, and Sn in 163 pooled samples across 17 food groups including fish and seafood; all levels below applicable legal limits for the Portuguese population
18Wu et al. 2025. Climate change amplifies neurotoxic methylmercury threat to Asian fish consumers, Proceedings of the National Academy of Sciences2025Peer-reviewedCN MeHg, tHg occurrence in Freshwater wild and farmed fish, marine wild fish sampled across China (22.5–49.4° N, 85.2–134.6° E, 2005–2020, 164 sampling… (n=13000)
19Aguilar-Miranda et al. 2024. Total mercury exposure through canned tuna in water sold in Quito, Ecuador, Scientific Reports2024Peer-reviewedEC/EU/US tHg occurrence in Sixty cans of tuna in water purchased from Quito supermarkets, March 2022-March 2023; three anonymized coded product groups… (n=60)
20ATSDR 2024. Toxicological Profile for Mercury, U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry2024Government reportATSDR comprehensive mercury toxicology profile — identifies methylmercury in fish and seafood as the dominant dietary exposure route and derives species-specific MRLs for elemental Hg, inorganic Hg, and MeHg
21Bakhshalizadeh et al. 2024. Trace and heavy metal concentrations in pectoral fin of Acipenser stellatus (stellate sturgeon) from the Caspian Sea, Environmental Science and Pollution Research2024Peer-reviewedIR As, Cd, Hg, Pb, Ni, V occurrence in Stellate sturgeon (Acipenser stellatus) pectoral fin tissue, Caspian Sea, Iran (n=40)
22Berber et al. 2024. Metal content and fatty acid profiles in narrow-clawed crayfish (Pontastacus leptodactylus) from Atikhisar Dam Lake, Turkey: seasonal variation and health risk assessment, Environmental Science and Pollution Research2024Peer-reviewedTR Fe, Zn, Al, Cu, Mn, Se, As, Hg, Cd, Pb occurrence in Pontastacus leptodactylus (narrow-clawed crayfish) from Atikhisar Dam Lake, Çanakkale, Turkey; monthly sampling over 12 months; male and female…
23BfR 2024. Methylmercury in fish and seafood – health risk assessment of new data from the BfR MEAL study, BfR Opinion 023/20242024Government reportDE/EU MeHg, tHg occurrence in German population across age groups (infants 0.5–<1 yr through elderly 65–<80 yr); consumption data from KiESEL (n=1,008 children…
24Chamorro et al. 2024. Atlantic bluefin tuna (Thunnus thynnus): health benefits, contaminants and risk-benefit analysis for human consumption, Food Reviews International2024Peer-reviewedEU tHg, MeHg, Cd, Pb, As occurrence in Review of Atlantic bluefin tuna (Thunnus thynnus) literature on contaminants and nutritional composition
25Christian et al. 2024. An evaluation of fish and invertebrate mercury concentrations in the Caribbean Region, Environmental Science and Pollution Research2024Peer-reviewedtHg in >1,600 samples of 108 species from 11 Caribbean countries (2005–2023); 26% exceeded the 0.46 µg/g FDA/EPA guideline, with tHg positively correlated with trophic level and fish length
26Codex 2024. Report of the 17th Session of the Codex Committee on Contaminants in Foods (REP24/CF17), Joint FAO/WHO Food Standards Programme, Codex Alimentarius Commission2024Government reportCCCF17 session report — initiated new work on a Cd Code of Practice with an annex for fish and seafood, extending the cocoa CoP model to additional food matrices
27Xinghui et al. 2024. Assessment of Dietary Arsenic Exposure Levels and the Associated Health Risks in Chongqing City, China, Chinese Journal of Public Health2024Peer-reviewedCN tAs occurrence in Chongqing city residents; food samples from 39 districts collected 2018-2023 covering 10 food categories; dietary consumption data from… (n=4900)
28Han et al. 2024. Occurrence and Exposure Assessment of Nickel in Zhejiang Province, China, Toxics2024Peer-reviewedCN Ni occurrence in Zhejiang Province residents, 11 cities, 2018–2019; n=19,000 in consumption survey (n=2628)
29Hussein et al. 2024. Risk assessment of some toxic metals in canned fish products retailed in Mansoura, Egypt, Open Veterinary Journal2024Peer-reviewedPb, Cd, tAs, tHg, Al, and Sn in 100 canned fish (herring, mackerel, salmon, sardine, tuna) from Egypt; sardine and tuna showed highest EU limit exceedance rates, Hg hazard index >1 for all species
30Li et al. 2024. Global fishing patterns amplify human exposures to methylmercury, Proceedings of the National Academy of Sciences2024Peer-reviewedglobal MeHg occurrence in Global fisheries modeling dataset: catch-weighted MeHg concentrations estimated for 1,774 marine species across global exclusive economic zones using… (n=1482)
31Mancuso et al. 2024. Food contamination and cardiovascular disease: a narrative review2024Peer-reviewedEU/global Pb, Cd, iAs, tAs, tHg occurrence in null
32Raab et al. 2024. Arsenolipids in the green microalga Chlamydomonas reinhardtii: first report of arsenosugar phospholipid (AsSugPhytol), Metallomics2024Peer-reviewedFreshwater-microalga arsenic speciation showing ~57% of total As bound as arsenolipids (first AsSugPhytol detection in any organism), extending the arsenobetaine/arsenosugar speciation context to algae-derived seafood ingredients
33Rohonczy et al. 2024. Cadmium and mercury trophic transfer in the Arctic marine food web of Hudson Bay, Environmental Science and Pollution Research2024Peer-reviewedCA Cd, tHg, MeHg occurrence in Multiple Arctic marine species from Hudson Bay, Canada: blue mussel, common eider, sculpin, Arctic cod, ringed seal (n=781)
34Sadee et al. 2024. Recent developments in speciation and determination of arsenic in marine organisms using different analytical techniques. A review, RSC Advances2024Peer-reviewediAs, tAs occurrence in Systematic review of published arsenic occurrence and speciation studies in marine organisms; no single primary cohort
35Sim et al. 2024. Determination of inorganic arsenic in seaweed, grain, grass silage, and insect protein by HPLC-ICP-MS using a design of experiments optimization approach, Food Chemistry2024Peer-reviewedEU iAs, tAs, As occurrence in Seaweed species (Laminaria digitata, Fucus spp., Saccharina latissima, Asparagopsis taxiformis, Porphyra spp.), rice, grass silage, and insect proteins;…
36Torabi et al. 2024. Health Risk Assessment of Heavy Metals in Marine Fish Caught from the Northwest Persian Gulf, Biological Trace Element Research2024Peer-reviewedIR Ni, Zn, Cu, Pb, Cd occurrence in Twenty fish from each of three marine species (Psettodes erumei, Sphyraena jello, and Sillago sihama) collected from six… (n=60)
37Yamashita 2024. LAEP-OES validation for total mercury in tuna and fish from Japanese markets, unknown2024Peer-reviewedLAEP-OES method validation for tHg in 102 fish specimens from Japanese markets including tuna; provides both method validation and real tHg occurrence concentrations from commercially available fish
38Zhao et al. 2024. Toxic Metals and Metalloids in Food: Current Status, Health Risks, and Mitigation Strategies, Current Opinion in Environmental Science & Health2024Peer-reviewedAU/BR/FR tAs, iAs, Cd, Pb occurrence in Global occurrence synthesis: Table 1 aggregates national mean occurrence data from Total Diet Studies across Australia, Brazil, France,…
39Zhuzhassarova et al. 2024. Fish and Seafood Safety: Human Exposure to Toxic Metals from the Aquatic Environment and Fish in Central Asia, International Journal of Molecular Sciences2024Peer-reviewedKZ/KG/TJ tAs, tHg, Cd, Pb occurrence in Narrative review of As, Hg, Cd, Pb in water bodies, fish, and human biomonitoring across five Central Asian…
40Abbas 2023. Heavy Metal Levels and Cancer Risk Assessments of the Commercial Denis, Sparus aurata Collected from Bardawil Lake and Private Fish Farm Waters as a Cultured Source, Egypt2023Peer-reviewedEG Pb, Cd, Ni, Fe, Cu, Zn occurrence in Sparus aurata (gilthead seabream); n=40 wild (Bardawil Lake, North Sinai) and n=40 farmed (Ezbet Elborg/Domeitta, Egypt) (n=80)
41Abdel-Tawwab et al. 2023. Saccharomyces cerevisiae supplemented diets mitigate the effects of waterborne cadmium toxicity on gilthead seabream (Sparus aurata L.): growth performance, haemato-biochemical, stress biomarkers, and histopathological investigations2023Peer-reviewedEG Cd occurrence in Gilthead seabream (Sparus aurata, 20–24 g) in 3×3 factorial design: three dietary yeast levels × three waterborne Cd…
42Al-Sulaiti et al. 2023. Health risk assessment of methyl mercury from fish consumption in a sample of adult Qatari residents, Environmental Science and Pollution Research2023Peer-reviewedQA tHg, MeHg occurrence in Adult Qatari residents aged 18+ (n=600 dietary survey respondents; 65 composite fish samples across 7 species) (n=65)
43Bakhshalizadeh et al. 2023. Bioaccumulation of rare earth elements and trace elements in different tissues of the golden grey mullet (Chelon auratus) in the southern Caspian Sea, Environmental Science and Pollution Research2023Peer-reviewedIR tAs, Cd, tHg, Pb occurrence in Golden grey mullet (Chelon auratus) from southern Caspian Sea, Bandar Anzali coast, Iran; average weight 385±156 g, length… (n=20)
44Bauer et al. 2023. Assessment of Human Health Risk of Metal(Loid) Content in Brazilian Sardine Along the Southwestern Atlantic, Bulletin of Environmental Contamination and Toxicology2023Peer-reviewedBR tAs, tHg, Al, Ba, Cr, Cu, Fe, Mn, Ni, Sr, Zn occurrence in Brazilian sardine Sardinella aurita muscle tissue from commercial landings in the northern CSSWA sector off Rio de Janeiro… (n=74)
45Benjamin et al. 2023. Levels of Heavy Metals in Selected Canned Fish on Cape Coast Market, Central Region, Ghana, International Journal of Environment, Agriculture and Biotechnology2023Peer-reviewedGH Pb, Sn, tHg occurrence in 10 canned fish products from Cape Coast market, Ghana: 4 mackerel brands (African Queen, Geisha, Ena Pa, Milano),… (n=10)
46Blanco et al. 2023. Mercury levels in fish in the Valencian Community: temporal evolution (2011-2017) and associated factors, Revista Española de Salud Pública2023Peer-reviewedES/EU tHg, MeHg occurrence in Fish samples collected under the Valencian Community food health surveillance programme (Generalitat Valenciana); 560 THg measurements, 206 MeHg… (n=635)
47Brodziak-Dopierala et al. 2023. Analysis of the Mercury Content in Fish for Human Consumption in Poland, Toxics2023Peer-reviewedPL/EU tHg occurrence in Sixty-eight fish purchased from hypermarkets, fish-only shops, and aquaculture breeding tanks across Poland in 2021-2022, representing 18 species… (n=68)
48Cardoso et al. 2023. Seasonal characterization of mercury contamination along the Portuguese coast: human health and environmental risk assessment, Environmental Science and Pollution Research2023Peer-reviewedPT/EU tHg occurrence in Seasonal sampling over 1 year at three Portuguese estuaries (Ria de Aveiro, Tagus, Ria Formosa); water, macroalgae, and…
49Coe et al. 2023. Assessing the Role of the Gut Microbiome in Methylmercury Demethylation and Elimination in Humans and Gnotobiotic Mice, Archives of Toxicology, Vol. 97, pp. 2399-24182023Peer-reviewedHuman cohort and gnotobiotic mouse evidence that gut microbiome composition determines MeHg demethylation efficiency — explains inter-individual variability in body burden at equivalent seafood MeHg intake
50Davydiuk et al. 2023. Effects of Dietary Intake of Arsenosugars and Other Organic Arsenic Species on Studies of Arsenic Methylation Efficiency in Humans, Environmental Health2023Peer-reviewedglobal iAs, tAs occurrence in Critical review of published epidemiological and clinical studies using DMA in urine as arsenic methylation marker; no new…
51Anda-Montanez et al. 2023. Spatial and Temporal Variability of Trace and Macro Elements in the Red Crab Pleuroncodes planipes in the Pacific Coast of the Baja California Peninsula, Mexico, Animals2023Peer-reviewedMX Cd, Cu, Fe, Mn, Ni, Pb, Zn, Ca, Mg occurrence in 279 whole adult red crabs (Pleuroncodes planipes, 32-40 mm body size) collected during three research cruises off the… (n=279)
52Diogène et al. 2023. Risk Assessment Strategies for Contaminants in Seafood (RASCS), EFSA Supporting Publications 2023:EN-84192023Government reportEU tAs, iAs, Pb, Cd, tHg, MeHg, Ni, Cr, Al occurrence in Strategy/programmatic report from a seven-institution EU consortium (IRTA Spain coordinator, CREDA Spain, IPMA Portugal, ISS Italy, Ghent University…
53Egbe et al. 2023. Heavy metal exposure risk associated with ingestion of Oreochromis niloticus and Coptodon kottae harvested from a lacustrine ecosystem, Environmental Science and Pollution Research2023Peer-reviewedCM Pb, Cd, tAs, Cr, Ni occurrence in 10 Oreochromis niloticus and 10 Coptodon kottae (endemic cichlid) sampled from Lake Barombi Kotto, Cameroon, with water and… (n=20)
54Haseeb-ur-Rehman et al. 2023. Metal pollution and potential human health risk assessment in major seafood items (fish, crustaceans, and cephalopods), Marine Pollution Bulletin2023Peer-reviewedPK tHg, Cd, Pb, Ni, Fe, Zn, Mn, Cu occurrence in Export-quality seafood from Pakistani processing plants during 2016-2018: 50 samples each of giant tiger shrimp, blue crab, Indian… (n=400)
55Hoy et al. 2023. Arsenic speciation in freshwater fish: challenges and research needs, Food Quality and Safety2023Peer-reviewedCA/CN/FR iAs, tAs occurrence in Peer-reviewed review of published arsenic-speciation literature for freshwater fish; primary data tables summarize studies from Canada, China, France,…
56Hussein et al. 2023. Risk assessment of toxic residues among some freshwater and marine water fish species, Frontiers in Veterinary Science2023Peer-reviewedEG Pb, Cd, tAs, tHg, Al occurrence in Freshwater and marine water fish from El-Obour city fish market, Egypt; six species (three freshwater, three marine), 20… (n=120)
57Job et al. 2023. Evaluation of water quality and bioaccumulation of metals in commercially important fishes: a human health concern, Environmental Geochemistry and Health2023Peer-reviewedIN tAs, Cd, Cr, Cu, Pb, Zn occurrence in Thirty fish samples covering five commercially important edible marine fish species from the Thondi coast/Palk Bay market area;… (n=30)
58Kim et al. 2023. Risk Assessment and Determination of Arsenic and Heavy Metals in Fishery Products in Korea, Foods2023Peer-reviewedKR Pb, Cd, tAs, tHg, MeHg occurrence in Fishery products purchased from grocery stores and markets in Seoul, Incheon, Daejeon, Gangneung, Busan, and Gwangju from January… (n=1186)
59Kosker et al. 2023. Metal levels of canned fish sold in Türkiye: health risk assessment, Frontiers in Nutrition2023Peer-reviewedTR Pb, Cd, tAs, Al, Cr, Fe, Cu, Zn, Se occurrence in Canned fish products (28 tuna, 3 salmon, 1 mackerel, 1 anchovy) from 13 brands, Turkey 2021 (n=34)
60Lehel et al. 2023. Metal Load of Potentially Toxic Elements in Tuna (Thunnus albacares) - Food Safety Aspects, Foods2023Peer-reviewedHU/LK/EU tAs, Cd, tHg, Pb occurrence in Yellowfin tuna (Thunnus albacares) flesh; 40 fish purchased at a fishery market in Hungary but originating from Sri… (n=40)
61Liu et al. 2023. Transformation of arsenic species from seafood consumption during in vitro digestion, Frontiers in Nutrition2023Peer-reviewedCN iAs, tAs occurrence in Laboratory study using crab, scallop, turbot, and flounder seafood samples subjected to in vitro digestion (BARGE UBM method)
62Lozano-Bilbao et al. 2023. Risk Assessment and Characterization in Tuna Species of the Canary Islands According to Their Metal Content, Foods2023Peer-reviewedES/EU Al, Cd, Cr, Cu, Fe, Li, Pb, Zn occurrence in Seventy-five tuna specimens caught by the Canarian fishing fleet in 2021; 15 specimens each of five species (Acanthocybium… (n=75)
63Molina et al. 2023. Effect of environmental variables on mercury accumulation in sediments of an anthropogenically impacted tropical estuary (Buenaventura Bay, Colombian Pacific), Environmental Monitoring and Assessment2023Peer-reviewedCO tHg occurrence in Sediment samples from four areas of Buenaventura Bay, Colombia, collected in dry and rainy seasons of 2015; cores…
64AEMA et al. 2023. Heavy metal contents in salted fish retailed in Egypt: Dietary intakes and health risk assessment2023Peer-reviewedEG Pb, Cd, tAs, tHg occurrence in 20 samples each of salted sardine, feseikh (salted mullet), sahlia (keeled mullet), and salted herrings from Zagazig markets,… (n=80)
65Nepper-Davidsen et al. 2023. High spatial and temporal variation in biomass composition of the novel aquaculture target Ecklonia radiata, Journal of Applied Phycology2023Peer-reviewedNZ tAs, Cd, Pb, tHg occurrence in 24 homogenised Ecklonia radiata samples (12 spatial sites across North Island NZ + 12 monthly temporal samples at… (n=24)
66Shu et al. 2023. Characteristics, sources and health risks of organotin compounds in marine organisms from the seas adjacent to the eastern ports of China, Regional Studies in Marine Science2023Peer-reviewedCN Sn occurrence in Twenty species of edible marine organisms, including mollusks, crustaceans, and fish, collected from nine ports along the eastern…
67Simionov et al. 2023. Human health risk assessment of potentially toxic elements and microplastics accumulation in products from the Danube River Basin fish market, Environmental Toxicology and Pharmacology2023Peer-reviewedRO/GR/IT Al, tAs, Cd, Cr, Cu, Ni, Pb, Zn, tHg occurrence in Fish and seafood specimens purchased from retailers in Galati, Romania: 18 fish species and 5 seafood species, n=10… (n=230)
68Sonke et al. 2023. Global change effects on biogeochemical mercury cycling, Ambio2023Peer-reviewedtHg, MeHg occurrence in Global synthesis — multiple study populations and monitoring networks
69Tolkou et al. 2023. Detection of Arsenic, Chromium, Cadmium, Lead, and Mercury in Fish: Effects on the Sustainable and Healthy Development of Aquatic Life and Human Consumers, Sustainability2023Peer-reviewedAR/BD/CN tAs, Cr, Cd, Pb, tHg occurrence in Narrative literature review of >50 fish species across 13 countries on 4 continents (Asia, Europe, Africa, Latin America)…
70Ulusoy 2023. Determination of toxic metals in canned tuna sold in developed and developing countries: Health risk assessment associated with human consumption, Marine Pollution Bulletin2023Peer-reviewedUS/DE/FI Cd, Pb, tHg, tAs occurrence in Two hundred twenty-two canned tuna samples purchased from supermarkets in 36 countries during 2017-2019; samples covered 19 developed… (n=222)
71USDA 2023. China Releases the Standard for Maximum Levels of Contaminants in Foods (USDA FAS GAIN Report CH2023-0040, unofficial translation of GB 2762-2022), USDA Foreign Agricultural Service, Global Agricultural Information Network (GAIN), Report Number CH2023-00402023RegulationCN Pb, Cd, tHg, MeHg, tAs, iAs, Sn, Ni, Cr occurrence in null
72Wang et al. 2023. Climate-driven changes of global marine mercury cycles in 2100, Proceedings of the National Academy of Sciences2023Peer-reviewedtHg, MeHg occurrence in Global coupled climate-biogeochemistry model projections under RCP4.5 and RCP8.5 scenarios to 2100; no new observational data generated
73Ashley-Martin et al. 2022. Biomonitoring of inorganic arsenic species in pregnancy, Journal of Exposure Science & Environmental Epidemiology2022Peer-reviewedCA/US/global iAs, tAs occurrence in Systematic review of biomonitoring studies of speciated iAs in pregnancy; covers cohort studies from Bangladesh, Spain, China, Mexico,…
74Cegolon et al. 2022. Concentration of mercury in human hair and associated factors in residents of the Gulf of Trieste (North-Eastern Italy), Environmental Science and Pollution Research2022Peer-reviewedIT/EU tHg, MeHg occurrence in General population residents of Friuli Venezia Giulia (FVG) coastal region, Gulf of Trieste, Italy; convenience sample recruited at… (n=301)
75Chávez-Capilla 2022. The Need to Unravel Arsenolipid Transformations in Humans, DNA and Cell Biology2022Peer-reviewedAU/NZ/FR tAs, iAs occurrence in Review article synthesizing arsenic speciation data across multiple studies
76EC 2022. Commission Regulation (EU) 2022/617 of 12 April 2022 amending Regulation (EC) No 1881/2006 as regards maximum levels of mercury in fish and salt, Official Journal of the European Union, OJ L 115, 13.4.2022, pp. 60–632022RegulationEU tHg, MeHg occurrence in Regulatory instrument — establishes binding maximum levels (MLs) for total mercury in fishery products on the EU market
77EFSA 2022. Safety of Lemna minor and Lemna gibba whole plant material as a novel food pursuant to Regulation (EU) 2015/2283, EFSA Journal2022Government reportEU tAs, Cd, Pb, tHg occurrence in Ten production batches (five Lemna minor, five Lemna gibba) from a commercial applicant, analyzed by ICP-MS per NEN… (n=10)
78Fechner et al. 2022. Results of the BfR MEAL Study: In Germany, mercury is mostly contained in fish and seafood while cadmium, lead, and nickel are present in a broad spectrum of foods, Food Chemistry: X2022Peer-reviewedDE/EU tHg, Cd, Pb, Ni occurrence in 869 pooled samples from 356 foods representing 90%+ of German food consumption; adults and adolescents N=13,926 (NVS II… (n=869)
79JECFA 2022. Cadmium: dietary exposure assessment, WHO Food Additives Series, No. 82 (Safety evaluation of certain contaminants in food, prepared by the 91st meeting of JECFA)2022Government reportJECFA 91st meeting Cd dietary exposure assessment — identifies seafood (bivalve molluscs, crustaceans, cephalopods) as a significant Cd exposure pathway alongside cereals and vegetables
80Li et al. 2022. Internal Dynamics and Metabolism of Mercury in Biota: A Review of Insights from Mercury Stable Isotopes, Environmental Science & Technology2022Peer-reviewedtHg, MeHg occurrence in Synthesis of mercury isotope fractionation data across multiple biota studies (review)
81Lordan et al. 2022. Cadmium: A Focus on the Brown Crab (Cancer pagurus) Industry and Potential Human Health Risks, Toxics2022Peer-reviewedIE/EU/NO Cd occurrence in Narrative review of the brown crab (Cancer pagurus) industry and cadmium exposure; tabulates cadmium concentrations compiled from prior…
82Motta et al. 2022. Mercury isotopic evidence for the importance of particles as a source of mercury to marine organisms, Proceedings of the National Academy of Sciences2022Peer-reviewedtHg, MeHg occurrence in Marine organisms (mesopelagic and bathypelagic fish and zooplankton) and water/particle samples from the North Pacific Ocean
83Larsen et al. 2022. Status and Trend for Heavy Metals (Mercury, Cadmium and Lead) in Fish, Shellfish and Sediment, OSPAR Commission, Quality Status Report 2023 Common Indicator Assessment2022Government reportEU/BE/DK Pb, Cd, tHg, Cu, Zn, Cr, Ni, tAs, Co, Ag, Sn occurrence in Aggregated CEMP monitoring data from 603 to 647 biota monitoring sites and 393 to 401 sediment monitoring sites…
84Suzuki et al. 2022. Presence of nano-sized mercury-containing particles in seafoods, and an estimate of dietary exposure, Environmental Pollution2022Peer-reviewedJP tHg, MeHg occurrence in Ninety raw fish and shellfish samples purchased in Japan in 2019-2020 across eight groups: tuna and swordfish, salmon… (n=90)
85Uc-Peraza et al. 2022. Organotin contamination in seafood from the Yucatán Peninsula, Mexico: Is there a potential risk for the health of consumers?, Chemosphere2022Peer-reviewedMX Sn occurrence in Seafood collected directly from local fishermen at five Yucatán Peninsula fishing sites in February-March 2018: 37 individual fish… (n=50)
86Vainio et al. 2022. Trophic Dynamics of Mercury in the Baltic Archipelago Sea Food Web: The Impact of Ecological and Ecophysiological Traits, Environmental Science & Technology2022Peer-reviewedFI/SE/DK tHg occurrence in 30 species from the Baltic Archipelago Sea (southwestern Finland), sampled 2017–2019 (white-tailed eagle 2013–2019); birds (3 spp.), fish… (n=136)
87Yap et al. 2022. Comparative Study of Potentially Toxic Nickel and Their Potential Human Health Risks in Seafood (Fish and Mollusks) from Peninsular Malaysia, Biology2022Peer-reviewedMY Ni occurrence in Three primary datasets newly measured in this study plus one cited dataset. (1) 19 species of commercial marine… (n=88)
88Zhao et al. 2022. Exposure to Lead and Cadmium in the Sixth Total Diet Study — China, 2016–2019, China CDC Weekly2022Government reportCN Pb, Cd occurrence in 288 composite samples from the 24 provincial-level administrative divisions (PLADs) of the Sixth China Total Diet Study, covering… (n=288)
89de et al. 2021. Data on metals, nonmetal, and metalloid in the samples of the canned tuna and canned sardines sold in Brazil, Data in Brief2021Peer-reviewedBR Al, tAs, Ba, Cd, Co, Cr, Cu, Fe, Ni, Pb, Zn occurrence in Twenty-six product-code rows from Campo Grande, Mato Grosso do Sul, Brazil: 16 canned-tuna rows (four coded companies across… (n=26)
90Farzan et al. 2021. Demographic Predictors of Urinary Arsenic in a Low-Income Predominantly Hispanic Pregnancy Cohort in Los Angeles, Journal of Exposure Science and Environmental Epidemiology2021Peer-reviewedUS tAs, iAs occurrence in Low-income predominantly Hispanic pregnant women in Los Angeles, California; MADRES cohort (n=241)
91Lin et al. 2021. Dietary Exposure of the Taiwan Population to Mercury Content in Various Seafood Assessed by a Total Diet Study, International Journal of Environmental Research and Public Health2021Peer-reviewedTW tHg, MeHg occurrence in Taiwan total-diet-study seafood sample set purchased from fishing harbors, traditional markets, afternoon markets, supermarkets, and discount stores across… (n=140)
92Liu et al. 2021. Discovery and Identification of Arsenolipids Using a Precursor-Finder Strategy and Data-Independent Mass Spectrometry, Environmental Science and Technology2021Peer-reviewedCA tAs occurrence in Krill oil capsules, tuna fillets, hairtail fish heads, and kelp purchased from retail markets in Edmonton (Canada) and… (n=4)
93Luvonga et al. 2021. Determination of total arsenic and hydrophilic arsenic species in seafood, Journal of Food Composition and Analysis2021Peer-reviewedUS tAs, iAs occurrence in Seven homogenized seafood/seaweed study materials: spirulina powder, Atlantic kelp powder, geoduck clam, wild-caught brown shrimp, aquacultured white-leg shrimp,… (n=7)
94Mehouel et al. 2021. Review of the toxic trace elements arsenic, cadmium, lead and mercury in seafood species from Algeria and contiguous waters in the Southwestern Mediterranean Sea, Environmental Science and Pollution Research2021Peer reviewed reviewDZ/TN/MA tAs, Cd, Pb, tHg, MeHg occurrence in Narrative review of published As, Cd, Pb, Hg, and MeHg occurrence studies in fish, mollusks, and crustaceans from…
95Melnyk et al. 2021. Risks from mercury in anadromous fish collected from Penobscot River, Maine, Science of the Total Environment2021Peer-reviewedUS tHg occurrence in Composite samples of 6 anadromous fish species (alewife, American shad, blueback herring, rainbow smelt, striped bass, sea lamprey)… (n=75)
96Novakov et al. 2021. Heavy metals and PAHs in mussels on the Serbian market and consumer exposure, Food Additives & Contaminants: Part B2021Peer-reviewedSerbia Pb, Cd, tHg, tAs occurrence in Eighty-four mussel-meat samples collected from supermarkets and fish markets in Serbia from January 2019 to March 2020: 42… (n=84)
97Raju et al. 2021. Heavy Metal Determination of Bivalves in Cagayan Valley, Philippines, Scholars Academic Journal of Biosciences 9(10):256-2582021Peer-reviewedPH Pb, Cd occurrence in Two bivalve species from Cagayan Valley, Philippines: freshwater clam (Corbicula fluminea) and marine mussel (Mytilus edulis); collected with…
98Sadighara et al. 2021. The organotin contaminants in food: Sources and methods for detection: A systematic review and meta-analysis, Food Chemistry: X2021Peer reviewed reviewJP/IT/CL Sn occurrence in Systematic review and meta-analysis of published food-matrix organotin studies; 123 database records were screened, 9 studies were selected,…
99Ufelle et al. 2021. Toxic Effects of Metals (Chapter 23), in Casarett & Doull’s Essentials of Toxicology, Fourth Edition, Casarett & Doull’s Essentials of Toxicology, Fourth Edition. McGraw Hill Education2021Textbook chapterCanonical toxicology reference for 29 metals including As, Cd, Hg, Pb, Ni; identifies seafood and rice as primary dietary exposure matrices for multiple metals
100Valencia et al. 2021. Heavy metal accumulation and risk assessment of lead and cadmium in cultured oysters (Crassostrea iredalei) of Cañacao Bay, Philippines, Sustinere: Journal of Environment and Sustainability 5(2), 64-782021Peer-reviewedPH Pb, Cd occurrence in Two hundred fourteen cultured slipper-cupped oysters (Crassostrea iredalei) of marketable shell length (45-55 mm) collected from three sampling… (n=214)
101Barchiesi et al. 2020. Heavy Metals Contamination in Shellfish: Benefit-Risk Evaluation in Central Italy, Foods2020Peer-reviewedIT Cd, Pb, tHg occurrence in Cd, Pb, and Hg analytical results for shellfish collected along the Italian coastline from January 2017 through December… (n=2207)
102Chung et al. 2020. Occurrence of organotin compounds in seafood from Hong Kong market, Marine Pollution Bulletin2020Peer-reviewedHK Sn occurrence in Three hundred forty-one seafood samples collected from wet markets and supermarkets in different regions of Hong Kong between… (n=341)
103Di et al. 2020. Heavy Metals and PAHs in Meat, Milk, and Seafood From Augusta Area (Southern Italy): Contamination Levels, Dietary Intake, and Human Exposure Assessment, Frontiers in Public Health 8:2732020Peer-reviewedIT/EU tAs, Cd, Cr, tHg, Ni, Pb, Zn occurrence in Meat, milk, and seafood from the Augusta-Melilli-Priolo industrial area in Southern Italy; seafood pooled across fish, mollusc, and… (n=Seafood from the Augusta Bay/Sicily study area plus terrestrial animal products from 26 farms: 5 bovine milk, 11 sheep/goat milk, 11 beef, and 3 pork samples.)
104Djedjibegovic et al. 2020. Heavy metals in commercial fish and seafood products and risk assessment in adult population in Bosnia and Herzegovina, Scientific Reports2020Peer-reviewedBA/ES/PT Cd, tHg, Pb occurrence in Commercial fish and seafood products purchased from retail in Bosnia and Herzegovina in June 2019, with country-of-origin labels… (n=37)
105Gutierrez-Ravelo et al. 2020. Toxic Metals (Al, Cd, Pb) and Trace Element (B, Ba, Co, Cu, Cr, Fe, Li, Mn, Mo, Ni, Sr, V, Zn) Levels in Sarpa Salpa from the North-Eastern Atlantic Ocean Region, International Journal of Environmental Research and Public Health2020Peer-reviewedES Al, Cd, Pb, B, Ba, Co, Cu, Cr, Fe, Li, Mn, Mo, Ni, Sr, V, Zn occurrence in Thirty Sarpa salpa specimens from three Tenerife coastal zones, with ten fish from each metropolitan, south, and north… (n=30)
106Maikanov et al. 2020. Quality and safety of fish products in the Shuchinsk-Burabay Resort Zone, Medycyna Weterynaryjna 76(10):585-5882020Peer-reviewedKZ tAs, Cd, tHg, Pb occurrence in Fish muscle samples from lakes in the Shuchinsk-Burabay resort zone, Kazakhstan. (n=44)
107Naess et al. 2020. Mercury, lead, arsenic, and cadmium in Norwegian seafood products and consumer exposure, Food Additives & Contaminants: Part B2020Peer-reviewedNO tHg, Pb, tAs, Cd occurrence in Market-representative commercially available seafood products collected in Norway in 2015, 2017, and 2018; each analytical sample was a… (n=84)
108Ormaza-Gonzalez et al. 2020. Low mercury, cadmium and lead concentrations in tuna products from the eastern Pacific, Heliyon2020Peer-reviewedEC/EU tHg, Cd, Pb occurrence in Ecuadorean cannery production batches sampled by the National Institute of Fisheries (INP, ISO/IEC 17025) 2009-2016: canned tuna (solid,… (n=2572)
109Pawlaczyk et al. 2020. Risk of Mercury Ingestion from Canned Fish in Poland, Molecules2020Peer-reviewedPL tHg, MeHg occurrence in Eighty-four canned fish products covering 25 brands from over 14 producers (19 brands of canned fish plus six… (n=84)
110Romero-Estévez et al. 2020. An Overview of Cadmium, Chromium, and Lead Content in Bivalves Consumed by the Community of Santa Rosa Island (Ecuador) and Its Health Risk Assessment, Frontiers in Environmental Science 8:1342020Peer-reviewedEC/EU Cd, Cr, Pb occurrence in Fifty composite bivalve soft-tissue samples (~10 individuals per composite) of Anadara tuberculosa and Anadara similis (locally ‘concha prieta’,… (n=50)
111Humberto et al. 2020. Trace metals in two wild populations of the squalid callista clam (Megapitaria squalida) in the southeastern Gulf of California, Mexico, Revista Internacional de Contaminacion Ambiental2020Peer-reviewedMX Cu, Cd, Cr, Ni, Pb, Zn, tAs, tHg occurrence in Wild Megapitaria squalida clams from Altata and Agiabampo Bays in the southeastern Gulf of California
112Tamele et al. 2020. Lead, Mercury and Cadmium in Fish and Shellfish from the Indian Ocean and Red Sea (African Countries): Public Health Challenges, Journal of Marine Science and Engineering2020Peer reviewed reviewEG/DJ/KE Pb, tHg, Cd occurrence in Narrative review of Pb, Hg, and Cd in fish and shellfish from African countries bordering the Indian Ocean…
113Wang et al. 2020. Contamination and health risk assessment of lead, arsenic, cadmium, and aluminum from a total diet study of Jilin Province, China, Food Science & Nutrition2020Peer-reviewedCN Pb, tAs, Cd, Al occurrence in Jilin Province total-diet-study composites across 12 food groups and 48 product groups, with consumption inputs for 7700 residents…
114Centre for Food Safety 2019. Guidelines on the Food Adulteration (Metallic Contamination) (Amendment) Regulation 2018, USDA Foreign Agricultural Service GAIN Report HK1922, relaying the Hong Kong Centre for Food Safety Guidelines for the Food Adulteration (Metallic Contamination) (Amendment) Regulation 2018 (Cap. 132V sub. leg.)2019Government reportHK Sb, tAs, iAs, Ba, B, Cd, Cr, Cu, Pb, Mn, MeHg, tHg, Ni, Se, Sn, U occurrence in Not a sampling study. Regulatory document setting maximum levels (MLs) for 14 metallic contaminants across food and food…
115Chen et al. 2019. Organotin contamination in commercial and wild oysters from China: Increasing occurrence of triphenyltin, Science of the Total Environment2019Peer-reviewedCN Sn occurrence in Commercial oysters from Shanghai seafood markets in November 2014 and wild oysters from fourteen coastal Chinese cities in…
116Zealand 2019. 25th Australian Total Diet Study, Food Standards Australia New Zealand2019Government reportAU/NZ tAs, iAs, Cd, Pb, tHg, iHg, MeHg occurrence in Australian total-diet survey: 88 food types, 508 prepared-food composite samples from all Australian states and territories, sampled May… (n=508)
117Matsumoto-Tanibuchi et al. 2019. Determination of Inorganic Arsenic in Seaweed and Seafood by LC-ICP-MS: Method Validation, Journal of AOAC International2019Peer-reviewedJP tAs, iAs occurrence in Japanese local-market food samples: eight dried seaweed products, seven seafood muscle/edible-portion samples, and two seafood-derived sauces/products in Table… (n=17)
118Rodriguez-Mendivil et al. 2019. Health Risk Assessment of Some Heavy Metals from Canned Tuna and Fish in Tijuana, Mexico, Health Scope2019Peer-reviewedMX tHg, Pb, Cd, Cr occurrence in 48 samples of canned tuna (6 samples × 8 brands) and 20 samples of fresh fish (5 samples… (n=68)
119Wang et al. 2019. Dietary Lead Exposure and Associated Health Risks in Guangzhou, China, International Journal of Environmental Research and Public Health2019Peer-reviewedCN Pb occurrence in Food safety risk monitoring samples from Guangzhou, China, collected during 2014-2017 across 27 food categories; consumption inputs came… (n=6339)
120Baki et al. 2018. Concentration of heavy metals in seafood (fishes, shrimp, lobster and crabs) and human health assessment in Saint Martin Island, Bangladesh, Ecotoxicology and Environmental Safety2018Peer-reviewedBD Cr, Mn, Cu, Zn, iAs, Cd, Pb, tHg, Fe occurrence in Eight fish species and five crustacean species collected from different points of Saint Martin’s Island and its local… (n=13)
121Martin et al. 2018. Seasonal levels of heavy metals in soft tissue and muscle of the pen shell Atrina maura from a farm in the southeastern coast of the Gulf of California, Mexico, Revista Internacional de Contaminacion Ambiental2018Peer-reviewedMX Cu, Cr, Cd, Ni, Pb, tAs, Zn, tHg occurrence in Farmed pen shell from the southeastern Gulf of California, sampled seasonally from summer 2011 to summer 2012
122Harding et al. 2018. Bioaccumulation of methylmercury within the marine food web of the outer Bay of Fundy, Gulf of Maine, PLoS ONE2018Peer-reviewedCA/US MeHg, tHg occurrence in Marine food-web organisms from the outer Bay of Fundy and Gulf of Maine
123Lehel et al. 2018. Heavy metals in seafood purchased from a fishery market in Hungary, Food Additives & Contaminants: Part B2018Peer-reviewedHU/DK/IT tAs, Cd, Pb, tHg occurrence in Seafood purchased weekly for 20 weeks from a fishery product market in Hungary: shellfish n=42 from Denmark and… (n=114)
124Lima et al. 2017. Cadmium, lead, tin, total mercury, and methylmercury in canned tuna commercialised in São Paulo, Brazil, Food Additives & Contaminants: Part B, Vol. 10, No. 3, pp 185–1912017Peer-reviewedBR Cd, Pb, Sn, tHg, MeHg occurrence in Thirty canned-tuna samples from five commercial brands (the most-sold brands in the Campinas, São Paulo region), three batches… (n=30)
125FDA 2017. Advice About Eating Fish — For Those Who Might Become or Are Pregnant or Breastfeeding and Children Ages 1 to 11 Years, U.S. FDA and U.S. EPA2017Government reportJoint FDA/EPA consumer guidance classifying fish by MeHg level into Best Choices, Good Choices, and Choices to Avoid — the operative US consumption advice for pregnant and breastfeeding women and children
126Martin et al. 2017. Heavy-metal contents in oysters (Crassostrea gigas) cultivated on the southeastern coast of the Gulf of California, Mexico, Hidrobiologica2017Peer-reviewedMX Cu, Cr, Cd, Ni, Pb, tAs, Zn, tHg occurrence in Cultivated Pacific oysters from the southeastern Gulf of California, Mexico
127Hardisson et al. 2017. Aluminium Exposure Through the Diet, HSOA Journal of Food Science and Nutrition2017ReviewES/DE/AU Al occurrence in Compiled literature review of Al concentrations across food groups and drinks; intake estimated against Spanish population consumption data…
128HELCOM et al. 2017. Metals (lead, cadmium and mercury) — HELCOM core indicator report, HELCOM Core Indicator Report (HOLAS II component), ISSN 2343-25432017Government reportEU/DE/DK Pb, Cd, tHg occurrence in Aggregated monitoring data from the HELCOM COMBINE database (held at ICES) for the assessment period 2011-2015, with all…
129JECFA 2017. Safety Evaluation of Certain Food Additives (Arsenic), 82nd Meeting of JECFA, WHO Food Additives Series 732017Government reportJECFA 82nd meeting arsenic monograph — addresses the iAs/tAs distinction, noting that seafood-derived organoarsenic (arsenobetaine, arsenosugars) is not the toxic species and must not be conflated with iAs
130Pazi et al. 2017. Potential risk assessment of metals in edible fish species for human consumption from the Eastern Aegean Sea, Marine Pollution Bulletin2017Peer-reviewedTR tHg, Cd, Pb, Cr, Cu, Zn occurrence in Four edible fish species collected by bottom trawling from Aliaga Bay and Izmir Bay on the Turkish Eastern… (n=320)
131Song et al. 2017. Dietary cadmium exposure assessment among the Chinese population, PLoS ONE 12(5): e01779782017Peer-reviewedCN Cd occurrence in 228,687 food samples collected from supermarkets, local markets, and field harvest sites across 31 provinces, autonomous regions, and… (n=228687)
132Stahl et al. 2017. Migration of aluminum from food contact materials to food - a health risk for consumers? Part I of III: exposure to aluminum, release of aluminum, tolerable weekly intake (TWI), toxicological effects of aluminum, study design, and methods, Environmental Sciences Europe2017Peer-reviewedDE/EU Al occurrence in Hessian State Laboratory aluminum results for 1,825 foodstuff samples across 30 product groups, plus Part I study-design context… (n=1825)
133Ho et al. 2016. Long-Term Spatio-Temporal Trends of Organotin Contaminations in the Marine Environment of Hong Kong, PLOS ONE2016Peer-reviewedHK Sn occurrence in Adult Reishia clavigera collected from 29 Hong Kong rocky-shore sites in 2010 and 10 selected sites in 2015;… (n=39)
134Lee et al. 2016. Health risk assessment of the intake of butyltin and phenyltin compounds from fish and seafood in Taiwanese population, Chemosphere2016Peer-reviewedTW Sn occurrence in Two hundred Taiwanese fishery products provided from 25 fishery markets in 2011: freshwater fish (n = 64), saltwater… (n=200)
135Smolikova et al. 2016. Determination of heavy metals in fish products, MendelNet 2016: Proceedings of International PhD Students Conference, pp. 651-6562016Conference proceedingsCZ/EU tHg, Cd, Pb occurrence in 33 species of fish purchased in Brno City (Czech Republic) markets from 17 FAO localities, September 2015–June 2016;… (n=159)
136Zhao et al. 2016. Seafood consumption among Chinese coastal residents and health risk assessment of heavy metals in seafood, Environmental Science and Pollution Research2016Peer-reviewedCN Pb, Cd, Cr, tHg, tAs occurrence in One hundred fifty-six market samples of 14 high-intake seafood types from six district regions of Xiamen, China; consumption… (n=156)
137Bhoyroo et al. 2015. Detection of heavy metals bio-accumulation in scombrids for the determination of possible health hazard, African Journal of Food Science and Technology 6(4):098-1072015Peer-reviewedMU Zn, Cu, Ni, Cr, Cd, Pb, tHg, tAs occurrence in Muscle tissue from yellowfin tuna, dogtooth tuna, marlin, and dorado caught in the Mauritian EEZ and sold/consumed as… (n=Four commercially edible pelagic fish species sampled in summer and winter from the Exclusive Economic Zone of Mauritius; per-species replicate counts not extractable from the text layer.)
138EFSA 2015. Statement on the benefits of fish/seafood consumption compared to the risks of methylmercury in fish/seafood, EFSA Journal 2015;13(1):3982, 36 pp.2015Government reportEU MeHg, tHg occurrence in Scenario-based risk-benefit assessment across 26 chronic dietary surveys from 17 EU Member States (Belgium, Bulgaria, Cyprus, Czech Republic,…
139Lim et al. 2015. Korean research project on the integrated exposure assessment of hazardous substances for food safety, Environmental Health and Toxicology2015Peer-reviewedKorean KRIEFS nationwide dietary exposure to Pb, Cd, and tHg (n=4,867); highest Hg found in fish (46.4 µg/kg median), with Korean fish intake driving higher blood Hg than EU reference populations
140EFSA 2014. Dietary exposure to inorganic arsenic in the European population, EFSA Journal 2014;12(3):35972014Government reportEU iAs, tAs concentrations (n=103773)
141Ho et al. 2014. Organotin contamination in seafood and its implication for human health risk in Hong Kong, Marine Pollution Bulletin2014Peer-reviewedHK Sn occurrence in Five analytical replicates for each of 11 commonly available Hong Kong seafood species: three gastropods, two bivalves, and… (n=55)
142Ralston et al. 2014. Selenium Health Benefit Values: Updated Criteria for Mercury Risk Assessments, Archives of Environmental Contamination and Toxicology2014Peer-reviewedSelenium health benefit value (HBVSe) methodology for concurrent MeHg and Se risk assessment in seafood — a positive HBVSe indicates net Se surplus protective against MeHg neurotoxicity
143Centre for Food Safety 2013. The First Hong Kong Total Diet Study: Metallic Contaminants, Centre for Food Safety, Food and Environmental Hygiene Department, Government of the Hong Kong Special Administrative Region2013Government reportHK Al, Sb, Cd, Pb, MeHg, Ni, Sn occurrence in Hong Kong general adult population; 150 TDS food items purchased on 4 occasions (March 2010 to February 2011),… (n=1800)
144Copat et al. 2013. Heavy metals concentrations in fish and shellfish from eastern Mediterranean Sea: Consumption advisories, Food and Chemical Toxicology2013Peer-reviewedIT tAs, Cd, Cr, Pb, Mn, Ni, V, Zn occurrence in Five fish species from the Catania fish market, n=30 specimens per species, plus 30 aliquots from a homogenized… (n=180)
145He et al. 2013. Exposure assessment of dietary cadmium: findings from shanghainese over 40 years, China, BMC Public Health2013Peer-reviewedCN Cd occurrence in Shanghai adults aged over 40, cross-sectional survey 2008, Baoshan District (n=207)
146Programme 2013. Minamata Convention on Mercury — Text and Annexes (2024 Edition), United Nations Environment Programme, Secretariat of the Minamata Convention on Mercury2013Government reportInternational Minamata Convention on Mercury — treaty framework regulating anthropogenic Hg releases that affect MeHg bioaccumulation in marine food chains and therefore seafood contamination globally
147Olmedo et al. 2013. Determination of toxic elements (mercury, cadmium, lead, tin and arsenic) in fish and shellfish samples. Risk assessment for the consumers, Environment International2013Peer-reviewedES/MA/MR tHg, MeHg, Cd, Pb, Sn, tAs occurrence in Fresh, canned, and frozen fish and shellfish products representing 43 frequently consumed species/products in Andalusia, Spain; samples collected… (n=485)
148Centre for Food Safety 2012. The First Hong Kong Total Diet Study: Inorganic Arsenic, Centre for Food Safety, Food and Environmental Hygiene Department, Government of the Hong Kong Special Administrative Region2012Government reportHK iAs, tAs occurrence in Hong Kong adult population aged 20-84; composite samples from 150 TDS food items collected on four occasions March… (n=600)
149EFSA 2012. Scientific Opinion on the Risk for Public Health Related to the Presence of Mercury and Methylmercury in Food, EFSA Journal 2012;10(12):29852012Government reportEFSA 2012 Hg/MeHg risk assessment — lowered MeHg TWI to 1.3 µg/kg bw/week anchored on Faroe and Seychelles cohort data; confirms high fish consumers substantially exceed TWI
150EFSA 2012. Cadmium dietary exposure in the European population, EFSA Journal 2012;10(1):25512012Government reportEU Cd occurrence in Cadmium occurrence results in food submitted to EFSA from 22 EU Member States, 3 European Economic Area or… (n=178541)
151Farina et al. 2011. Mechanisms of Methylmercury-Induced Neurotoxicity: Evidence from Experimental Studies, Life Sciences 89(15-16):555-5632011Peer-reviewedMechanistic review of MeHg neurotoxicity — blood-brain barrier crossing, glutathione thiol binding, oxidative stress, and calcium disruption; provides molecular basis for the developmental neurotoxicity endpoint
152Zealand 2011. The 23rd Australian Total Diet Study, Food Standards Australia New Zealand2011Government reportAU/NZ Al, tAs, iAs, Cd, Pb, tHg, iHg, MeHg occurrence in Ninety-two Australian foods and beverages, including tap and bottled water, represented by 570 composite samples; each composite used… (n=570)
153Cirillo et al. 2010. Survey of lead, cadmium, mercury and arsenic in seafood purchased in Campania, Italy, Food Additives & Contaminants: Part B: Surveillance2010Peer-reviewedIT Pb, Cd, tHg, tAs occurrence in Seafood marketed in Campania, Italy from January-May 2007: 162 fish and cephalopod specimens and 30 mussel pools/soft-tissue packs… (n=192)
154Grandjean et al. 2010. Adverse Effects of Methylmercury: Environmental Health Research Implications, Environmental Health Perspectives2010Peer reviewed reviewJP/IQ/US MeHg, tHg occurrence in Peer-reviewed review of methylmercury toxicity, historical poisoning incidents, fish and seafood exposure pathways, and regulatory response; no original…
155Abdullah 2009. Determination of Heavy Metals in Selected Fish Sauce, B.Sc. (Hons.) Chemistry final-year project, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Shah Alam, Selangor, Malaysia2009ThesisMY Pb, Cd, Zn, Al occurrence in Three commercial fish-sauce samples coded sample A, sample B, and sample C. The abstract does not state brand… (n=3)
156EFSA 2009. Scientific Opinion on Arsenic in Food, EFSA Journal 2009;7(10):13512009Government reportEFSA 2009 arsenic risk assessment — distinguishes iAs (carcinogenic) from seafood-origin organoarsenic (arsenobetaine, not of health concern); sets the regulatory and exposure context for seafood As
157EFSA 2009. Scientific Opinion of the Panel on Contaminants in the Food Chain on a request from the European Commission on cadmium in food, The EFSA Journal2009Government reportEFSA 2009 Cd risk assessment establishing EU TWI of 2.5 µg/kg bw/week; identifies bivalve molluscs, crustaceans, and cephalopods as high-Cd seafood subcategories contributing to population Cd exposure
158Lorenzana et al. 2009. Arsenic in Seafood: Speciation Issues for Human Health Risk Assessment, Human and Ecological Risk Assessment2009ReviewUS/GLOBAL tAs, iAs occurrence in Scholarly review of worldwide literature and U.S. site-assessment data on total and inorganic arsenic in marine, estuarine, freshwater,…
159Rodriguez et al. 2009. Arsenic speciation in fish sauce samples determined by HPLC coupled to inductively coupled plasma mass spectrometry, Food Chemistry2009Peer-reviewedAT/TH/VN tAs, iAs occurrence in Six commercial fish sauces — four brands from Thailand and two from Vietnam — purchased at local stores… (n=6)
160Pereira et al. 2008. Mercury pollution in Ria de Aveiro (Portugal): a review of the system assessment, Environmental Monitoring and Assessment2008Peer-reviewedPT tHg occurrence in Review of Ria de Aveiro mercury studies, including Table 3 biotic-compartment summaries for macroalgae, benthic fauna, and fish…
161Zanon et al. 2008. Time trend of Butyl- and Phenyl-Tin contamination in organisms of the Lagoon of Venice (1999-2003), Environmental Monitoring and Assessment2008Peer-reviewedIT/EU Sn occurrence in Pooled edible-organism samples of Mytilus galloprovincialis and Tapes spp. collected from up to 20 stations in the Lagoon…
162ATSDR 2007. Toxicological Profile for Arsenic, U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry2007Government reportATSDR 2007 comprehensive arsenic toxicology profile — notes that seafood-derived organoarsenic (arsenobetaine) does not contribute to iAs exposure and must be excluded from dietary iAs calculations
163Schoof et al. 2007. Variation of total and speciated arsenic in commonly consumed fish and seafood, Human and Ecological Risk Assessment2007Peer-reviewedUS/ES/NO tAs, iAs occurrence in Compiled fish and seafood arsenic-speciation results from 20 studies, summarized into freshwater finfish, anadromous fish, marine fish, crustaceans,… (n=437)
164Uneyama et al. 2007. Arsenic in various foods: Cumulative data, Food Additives & Contaminants2007Peer-reviewedJP/US/GB tAs, iAs occurrence in Cumulative review of arsenic measurements in food from PubMed, Japanese local-authority research databases, and national food-safety surveillance reports;…
165Fattorini et al. 2006. Characterization of arsenic content in marine organisms from temperate, tropical, and polar environments, Chemistry and Ecology2006Peer-reviewedIT/CU tAs, iAs occurrence in Bivalve molluscs, crustaceans, and fish sampled from relatively unimpacted Mediterranean sites in Italy, Cienfuegos Bay in Cuba, and… (n=245)
166Jianying et al. 2006. Trophic Magnification of Triphenyltin in a Marine Food Web of Bohai Bay, North China: Comparison to Tributyltin, Environmental Science & Technology, Vol. 40, No. 10, pp 3142–31472006Peer-reviewedCN Sn occurrence in Marine food web from Bohai Bay, North China, sampled May, June, and September 2002: phytoplankton/seston (n=3), zooplankton (n=3),… (n=48)
167Harper et al. 2005. Toxicological Profile for Tin and Tin Compounds, U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry2005Government reportATSDR Sn toxicology profile — identifies organotins (tributyltin, triphenyltin) from coastal-water seafood as a distinct and far more toxic Sn exposure pathway than inorganic tin from tinplate cans
168Park et al. 2005. Speciation of Six Arsenic Compounds in Korean Seafood Samples by HPLC-ICP-MS, Key Engineering Materials2005Peer-reviewedKR iAs occurrence in Thirty-three Korean seafood samples of seaweed, shrimp, fish, and shellfish plus two certified reference materials, analyzed for six… (n=33)
169Committee on Toxicity of 2004. Updated COT statement on a survey of mercury in fish and shellfish, Advice on fish consumption, Annex 32004Government reportGB tHg, MeHg occurrence in COT/SACN review of the 2002 FSA fish and shellfish mercury survey, 1998 MAFF marine fish/shellfish survey context, and…
170EC 2004. Assessment of the dietary exposure to arsenic, cadmium, lead and mercury of the population of the EU Member States, Reports on tasks for scientific cooperation, SCOOP Task 3.2.112004Government reportEU/BE/DK tAs, Cd, Pb, tHg occurrence in Occurrence, consumption, and intake submissions for arsenic, cadmium, lead, and mercury from EU Member States and Norway under…
171EFSA 2004. Opinion of the Scientific Panel on Contaminants in the Food Chain on a request from the Commission to assess the health risks to consumers associated with exposure to organotins in foodstuffs, EFSA Journal 2004;102:1-1192004Government reportEU/BE/DK Sn occurrence in EU SCOOP Task 3.2.13 occurrence database for organotin compounds in fish and fishery products submitted by Belgium, Denmark,… (n=2110)
172Fattorini et al. 2004. Chemical speciation of arsenic in different marine organisms: Importance in monitoring studies, Marine Environmental Research2004Peer-reviewedCU tAs, iAs occurrence in Thirteen species rows of marine organisms collected from Cienfuegos Bay, Cuba, 15 days after a December 2001 arsenic… (n=13)
173JECFA 2004. Evaluation of Certain Food Additives and Contaminants (Methylmercury), 61st Meeting of JECFA, WHO Technical Report Series 9222004Government reportJECFA 61st meeting — established the international MeHg PTMI of 1.6 µg/kg bw/week anchored on Faroe and Seychelles cohort data; foundational reference for all regulatory MeHg limits in seafood
174Shim et al. 2004. Mercury and Fatty Acids in Canned Tuna, Salmon, and Mackerel, Journal of Food Science2004Peer-reviewedUS tHg occurrence in 240 canned tuna samples (5 brands × 4 types × 3 lots × 2 composites), 16 canned salmon… (n=272)
175Committee on Toxicity of 2003. Statement on arsenic in food: results of the 1999 Total Diet Study, Committee on Toxicity statement2003Government reportGB tAs, iAs occurrence in 1999 UK Total Diet Study arsenic analysis: 119 food categories collected from 24 towns and combined into 20… (n=480)
176Dabeka et al. 2003. Survey of total mercury in total diet food composites and an estimation of the dietary intake of mercury by adults and children from two Canadian cities, 1998-2000, Food Additives & Contaminants2003Peer-reviewedCA tHg occurrence in Total mercury in 259 total-diet food composites prepared from retail foods purchased in Whitehorse in January-February 1998 and… (n=259)
177EPA 2001. Methylmercury (MeHg) — IRIS Chemical Assessment Summary, U.S. Environmental Protection Agency, Integrated Risk Information System2001Government reportEPA IRIS MeHg assessment establishing US oral RfD of 0.1 µg/kg bw/day for developmental neurotoxicity; the basis for FDA/EPA fish consumption advice for pregnant women and children
178Amodio-Cocchieri et al. 2000. Alkyltins in farmed fish and shellfish, International Journal of Food Sciences and Nutrition2000Peer-reviewedIT/NO Sn occurrence in Farmed fish and mussels bought from Naples-area retail stores between June 1997 and May 1998, with free-living fish… (n=170)
179EPA 1999. Mercury Update: Impact on Fish Advisories, US EPA Fact Sheet EPA-823-F-99-0161999Government reportUS tHg, MeHg occurrence in 1,931 state-issued fish-consumption advisories in 40 states as of December 1998; cited fish-tissue mercury data drawn from EPA… (n=1931)
180Munoz et al. 1999. Rapid and quantitative release, separation and determination of inorganic arsenic [As(III)+As(V)] in seafood products by microwave-assisted distillation and hydride generation atomic absorption spectrometry, Journal of Analytical Atomic Spectrometry1999Peer-reviewedES iAs, tAs occurrence in Twenty-one natural seafood products purchased at local retail outlets: fresh anchovy, clam, cockle, mussel, sardine, small squid, squid;… (n=21)
181Voegborlo et al. 1999. Mercury, cadmium and lead content of canned tuna fish, Food Chemistry1999Peer-reviewedLY tHg, Cd, Pb occurrence in Fifty 5 kg cans of tuna fish from the Tuna Canning Factory in Misurata, Libya; tuna were caught… (n=50)
182EPA 1997. Arsenic and Fish Consumption, US EPA Office of Water1997Government reportUS iAs, tAs occurrence in Literature review of fish and shellfish arsenic data; exposure scenarios derived from USDA Continuing Survey of Food Intake…
183Codex 1995. General Standard for Contaminants and Toxins in Food and Feed (CXS 193-1995), Codex Alimentarius (Joint FAO/WHO Food Standards Programme)1995Government reportCodex General Standard — sets international MeHg, Pb, Cd, and iAs maximum levels applicable to fish, bivalve molluscs, cephalopods, and other seafood categories
184Harada 1995. Minamata Disease: Methylmercury Poisoning in Japan Caused by Environmental Pollution, Critical Reviews in Toxicology1995Peer reviewed reviewJP MeHg, tHg occurrence in Peer-reviewed review of Minamata disease, congenital Minamata disease, historical mercury contamination in Minamata Bay and the Shiranui Sea,…
185Chou et al. 1993. Cadmium in American lobster (Homarus americanus) from the area of Belledune Harbour, New Brunswick, Canada: 1980-1992 results, Canadian Technical Report of Fisheries and Aquatic Sciences No. 19161993Gray literatureCA Cd, Pb, tHg, tAs, Cu, Ag occurrence in American lobster (Homarus americanus) captured 1980-1992 at eight sites in and around Belledune Harbour, New Brunswick, Canada —…
186IARC 1990. Chromium, Nickel and Welding, IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, Volume 491990Government reportINTL Cr, Cr-VI, Ni occurrence in International scientific working group; review of global occupational, environmental, dietary, and experimental data for Cr, Ni, and welding…
187Kaise et al. 1988. Distribution of inorganic arsenic and methylated arsenic in marine organisms, Applied Organometallic Chemistry1988Peer-reviewedJapan tAs, iAs occurrence in Sixty marine-organism specimens collected from the Miura Peninsula and Shimonoseki coasts in Japan, plus some market samples; fish… (n=60)
188Norin et al. 1985. Concentration of inorganic and total arsenic in fish from industrially polluted water, Chemosphere1985Peer-reviewedSweden tAs, iAs occurrence in Fish captured from arsenic-polluted brackish water near Ronnskar/Skelleftebukten, unpolluted brackish reference water at Furuogrund, polluted freshwater Lake Bodatrask,…
189Falconer et al. 1983. Arsenic levels in fish and shellfish from the North Sea, Journal of Experimental Marine Biology and Ecology1983Peer-reviewedGB tAs occurrence in Commercially important fish and shellfish landed at selected Scottish fishing ports in the 1975-1976 survey, plus additional plaice…
190Brooke et al. 1981. Determination of Total Inorganic Arsenic in Fish, Shellfish and Fish Products, Analyst1981Peer-reviewedGB iAs, tAs occurrence in Fish and shellfish product sample rows in Table V: herring, canned crab, haddock, NBS dried tuna, two whelk… (n=9)
191Nielsen et al. 1975. Heavy metal levels in New Zealand molluscs, New Zealand Journal of Marine and Freshwater Research 9(4), 467-4811975Peer-reviewedNZ Cd, Pb, tHg, Cu, Zn, Fe occurrence in Two hundred and three numbered samples (Appendix sample numbers 1-203) drawn from 199 sampling sites distributed around the… (n=203)
192Reinke et al. 1975. The determination of arsenite and arsenate ions in fish and shellfish by selective extraction and polarography, Environmental Letters1975Peer-reviewedCA iAs, tAs occurrence in White muscle or organ tissue from halibut, shrimp, haddock, crab, mackerel, herring, lobster tail, and lobster hepatopancreas analyzed… (n=8)

Why this commodity accumulates heavy metals

This is the aggregate node for seafood; see fish for fin-fish synthesis, freshwater-fish for freshwater species, shellfish and bivalve-molluscs for crustacean and bivalve detail, seaweed for marine plants, shark for high-trophic predator detail, and canned-tuna for canned tuna specifically. Across the seafood category, the dominant pathway varies by sub-commodity:

Methylmercury is the dominant concern in fin-fish and reflects aquatic-food-web biomagnification (see fish and mercury-methyl). Apex marine predators (shark, swordfish, king mackerel, tilefish, bigeye tuna) carry the highest MeHg loads.

Cadmium is the dominant concern in bivalve molluscs (oysters, mussels, clams, scallops). Bivalves filter large volumes of water and concentrate cadmium and other metals from the water column. bivalve-molluscs is the canonical page for this.

Inorganic arsenic is elevated in seaweed and kelp (see seaweed); marine algae bioaccumulate arsenic from seawater and partition some of it as inorganic species.

Total arsenic in fin-fish is dominated by arsenobetaine, a non-toxic organic form; total arsenic in shellfish carries a mix of arsenobetaine and arsenosugars. See arsenic-total for the speciation-rule discussion.

The category-wide HMTc panel concerns vary by sub-commodity. The Cat 6 Step 0 lock recognizes this by splitting seafood into rows: freshwater fish, marine non-predatory fish, marine predatory fish, shellfish, seaweed/kelp foods, and canned seafood (with tin flag).

Ranges by source, region, and variety

Variance within the seafood category is the largest of any food category because the metal-load drivers operate on completely different mechanisms across sub-commodities: trophic-level biomagnification (MeHg in fin-fish), water-column filtration (Cd in bivalves), bio-uptake from seawater (iAs in seaweed). Cross-sub-commodity comparison requires per-sub-commodity context.

See per-sub-commodity ingredient pages for specific range and variance synthesis.

Processing effects

Seafood processing (cleaning, filleting, freezing, canning, smoking, drying, fermentation) generally does not remove the source-seafood metal load. Methylmercury in fin-fish is bound to muscle protein and is not reduced by cooking, smoking, or canning. Cadmium in bivalves is bound in soft tissue and is not removed by depuration (the water-circulation cleaning step in commercial bivalve operations) at meaningful levels.

Canning concentrates per-mass metal through water loss and introduces standard tinplate-Sn-migration consideration for canned seafood (with-tin-flag designation per Cat 6 Step 0 lock).

Smoking can add trace metals from smoke-source contamination but the contribution is small relative to source-fish methylmercury or source-bivalve cadmium.

Ingredient-derivative risk

Seafood-derived derivatives concentrate metals: fish flour and fish protein concentrate carry source-fish metals at concentrated per-mass dry-basis levels; fish oil supplements partition methylmercury out but retain lipophilic contaminants (PCBs, dioxins); cod liver oil specifically carries elevated Cd and Pb relative to refined fish oil because liver is the Cd-storage organ.

Bivalve-derived products (oyster supplements, shellfish powders) carry the source bivalve Cd.

Seaweed-derived products (kelp tablets, dulse flakes, kelp granules as salt substitute) carry source-seaweed iAs at concentrated dry-mass levels and route to Cat 16 row 19 when sold as dietary supplements.

Mitigation options

Sourcing levers (supply-chain-screening) are the dominant intervention across seafood sub-commodities. For methylmercury in fin-fish: species selection (low-trophic short-lived species over apex predators) is the largest single intervention. For cadmium in bivalves: production-area selection (bivalve growing areas with documented low-Cd water-column data) reduces source-Cd. For iAs in seaweed: species selection (some seaweed species accumulate iAs less than others) and product-format selection (rinsed vs unrinsed seaweed has different iAs).

Consumption-pattern levers apply at the consumer level for fin-fish methylmercury (FDA/EPA tiered consumption advisory) and for bivalves (commercial-Cd-monitored bivalve sources only).

Processing levers (processing) are limited for the source-seafood metal load. Cooking and processing don’t reduce methylmercury, Cd, or iAs at meaningful levels.

Testing and QC levers (testing-and-qc) include lot-level methylmercury testing for fin-fish (especially predatory species) and lot-level Cd testing for bivalves. Seaweed should be speciation-tested for iAs/tAs split. See icp-ms and arsenic-speciation.

Packaging and storage levers (packaging-and-storage) include the Sn-migration consideration for canned seafood.

Agronomic and formulation levers are not consequential for wild-caught seafood; aquaculture seafood has feed-source levers that operate analogously to terrestrial-animal feed sourcing.

Regulatory limits that apply

  • eu-2023-915 — EU Reg. 2023/915 sets species-specific Hg maximum levels for fishery products. Pb and Cd MLs for fish and bivalve molluscs are also set.
  • Codex CXS 193-1995 — Codex Alimentarius General Standard for Contaminants and Toxins covers fish and shellfish.
  • FDA action level of 1.0 ppm methylmercury in fish (fda-methylmercury-fish-1-ppm when added) is the US enforcement reference.
  • FDA/EPA joint fish-consumption advisory categorizes fish into best-choice, good-choice, and avoid tiers for pregnant women and young children.
  • California Prop 65 (california-prop65) Pb MADL and Hg MADL apply to seafood sold in California; serving-based screens govern.

Page history

The five most recent substantive edits to this page. The full version history lives in git; when DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.

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