Overview
This source page is a mechanical bulk-ingest record for a PDF in the methylmercury infant-formula research pull. It preserves source-level identity, routeable product/analyte scope, and exact extracted numeric lines for later human or fresh-context audit. It does not derive HMTc thresholds, percentiles, or brand-by-brand comparisons.
Key numbers
The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:
- ISSN: 2722-1369 (Online)
- Md. Sakhawat Hossain1, S. M. Abidur Rahman1, Md. Mizanur Rahman2, Md. Ali Muztaba1,
- Received : 25 December 2021 vegetables. Therefore, in this study, we analyzed 100 samples of deep tube well
- Revised : 26 April 2022 water, sediment, soil, vegetable, and fish samples, collected from five different
- Consumption of trace elements in the 2014). However, Monomethylarsonic acid (MMA
- them. Hence, monitoring of the human exposure to et al., 2014).
- al., 1993; Roychowdhury et al., 2002, 2003; dust and fumes could be the respiratory process, and
- Sapunar-Postružnik et al., 1996; Tsuda et al., 1995). oral digestion for water, beverages, and foods. The
- concentrations might get varied through the with various biological ligands (Nriagu, 1994).
- anthropogenic status (Villa-Lojo et al., 2002). Humankind is bound to get in touch with arsenic-
- Indonesian Journal of Social and Environmental Issues (IJSEI), 3 (1), 29-36
- system, respiratory tract, etc. (Jaishankar et al., (0.004 mg/l) from Croatia whereas foods from
- with human health are noticeable among people range between <0.0001-4.83 mgkg-1 (Dabeka et al.,
- from the southeastern part of Asia, specifically in 1993). In Japan, a total diet study showed the daily
- countries like Bangladesh, Taiwan, and India. intake of arsenic leveled between 0.16 mg and 0.28
- According to the WHO and Environmental mg while the value got decreased to 0.088 mg and
- Protection Agency (EPA), arsenic is classified as a 0.065 mg in the USA and United Kingdom,
- due to its toxicity. (Afzal et al., 2018; World Health grains (0.074 mgkg-1) (Schoof et al., 1999).
- Organization, 2017). A relevant study, by Recently, a study by Alam et al., (2003) reported
- et al., 1999) found that arsenic toxicity reduces with 0.225 mg per kg and 0.019-0.489 mg per kg,
- of MMA and DMA were found more carcinogenic was between 0.07 and 0.3990 mg per kg(Das et al.,
- in another study by Vega et al., (2001). 2004).
- 150 million of population, is considered one of the arsenic exposure scenario of Bangladeshi people.
- Samanta et al., (1999) found arsenic contamination
- in 41 among 64 districts of Bangladesh. MATERIALS AND METHODS
- Approximately, 61% of tube-wells water was found Sample Collection Area
- to contain arsenic of more than 0.05 mg per liter. All samples were collected randomly from five
- whereas 13% have had arsenic content above 0.01 different locations of Joypurhat district, Bangladesh
- mg/l (Ali & Tarafdar, 2004). The arsenic which are pointed out in the following figure. Most
- was 0.26 mg/l having an upper level of 0.83 mg/l known to be adversely contaminated with arsenic.
- limit (0.01 mg/l) declared by the WHO (World Upazila. All of the samples from waterbodies were
- Health Organization, 2017) and Environment then acidified to near pH < 2 using hydrochloric
- Protection Agency (Flanagan, 1990), respectively. acid and then kept under 4°C temp until analysis. 5
- The aspects of food chain contamination by arsenic rice-sample and 20 vegetables-samples were
- of potable water is groundwater which is mostly bags of polyethylene and preserved under 4°C
- 2003). A considerable amount (1.7mg/l) of arsenic of 15-30cm below the surface level of the ground.
- Meharg& Rahman, (2003) whereas a large locations, a total of 25 samples were collected from
- Bangladesh (Alam et al., 2003; Das et al., 2004). For arsenic determination from water samples,
- Similar studies regarding this topic, have also a similar method reported by Kundu et al., (2018)
- been conducted to determine the content of arsenic was used. According to this journal article 50mL
- inside foods from various regions of various volumetric flask was used to take 1mL of sample;
- countries. For instance, a study by Sapunar- added 4 mL concentrated HCl, 5 mL of ascorbic
Methods (brief)
- Received : 25 December 2021 vegetables. Therefore, in this study, we analyzed 100 samples of deep tube well
- Revised : 26 April 2022 water, sediment, soil, vegetable, and fish samples, collected from five different
- atomic absorption spectroscopy followed by the wet digestion method. From this
- analysis, a shocking result has been found that almost every sample contains arsenic
- food samples (vegetable and rice) which is an alarming issue for southeast Asian
- Sapunar-Postružnik et al., 1996; Tsuda et al., 1995). oral digestion for water, beverages, and foods. The
- (MMA III, V), dimethylarsinic acid (DMA V), gastrointestinal tract, hematopoietic system, nervous
- carcinogen to skin, lung, bladder, liver, and kidney in seafood samples (2.36 mgkg-1) compared to rice
- of MMA and DMA were found more carcinogenic was between 0.07 and 0.3990 mg per kg(Das et al.,
- Approximately, 61% of tube-wells water was found Sample Collection Area
- to contain arsenic of more than 0.05 mg per liter. All samples were collected randomly from five
- concentration in contaminated water, on average, of the deep tube well samples in this area were
- which is unfortunately way higher than the In a sterilized polyethylene bottle 25 water samples
- maximum permissible limit (0.05 mg/l) and upper were collected from 5 different locations from each
- limit (0.01 mg/l) declared by the WHO (World Upazila. All of the samples from waterbodies were
- The aspects of food chain contamination by arsenic rice-sample and 20 vegetables-samples were
- in Bangladesh came in limelight as the main source collected from the field before being stocked in
- used for agriculture purposes (Duxbury et al., temp. Soil samples were resourced from the depth
Implications
This page makes the source discoverable for category-level evidence routing. Values remain source-native and should be used only with the stated matrix, species, basis, geography, and censoring context from the paper. The page does not convert total mercury to methylmercury or use total arsenic as inorganic arsenic.
Wiki pages this source may touch
- Fish — marine, predatory (tuna, swordfish, shark, king mackerel)
- Fish — marine, non-predatory (sardines, anchovies, salmon, cod)
- Seaweed/kelp foods (nori, wakame, kombu, dulse — as food products)
- Mercury
- Cadmium
- Arsenic
- Aluminum
Verification notes
- Identity check: DOI, raw handle, candidate cite-key, and SHA-256 were compared against existing
wiki/sources/pages before creation. - Full-PDF read:
pdftotext -layoutwas run on the full PDF twice; extracted text hashes matched before the page was written. - Numeric verification: numeric/table-bearing lines were selected mechanically from the verified extraction and preserved without unit conversion or rounding.
- Brand firewall: the worker skips PDFs when extracted numeric lines appear brand/manufacturer-sensitive; this page contains category-level or species-level evidence only.
- HMTc firewall: no threshold, percentile, pass/fail, clean/dirty, or certification math is stated.
Update history
The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and 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.