Overview
This source page is a mechanical bulk-ingest record for a PDF in the research-pulls corpus. 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:
- Results: The median hair MeHg level was 7.15 μg/g, exceeding international guidelines. Higher levels were
- Based on a hypothesized correlation between scalp As shown in Table 2, higher median methyl mercury
- 95% confidence and 80% statistical power. caught from waters near industries (3.8 μg/g), and
- Ethical approval was granted by the Ethical Review Table 2: Median methyl mercury levels in scalp hair
- recruited with a mean age of 25 years. The
- primary education or below (76%). The median total
- median concentration of methylmercury in scalp methyl mercury (MeHg) in the scalp hair of 100
- Table 3: Correlation Matrix of Demographic and Health contribute to elevated MeHg levels. Notably,
Methods (brief)
- Detailed dietary histories were obtained through interviews. Scalp hair samples were analyzed for total mercury
- using Cold Vapor Atomic Absorption Spectrophotometry.
- States(11). Hair samples have been widely used as
- Therefore, analyzing hair samples can provide a
- sample size of approximately 100 subjects to ensure whitening creams/soaps (6.5 μg/g), eating fish
- was obtained before interviews and hair sample population
- method involving cutting a sample of hair close to Marital status
- samples were sent to the laboratory where they - ≤ primary 58 (76)
- external contamination. The samples were then Average weekly fish
- temperatures in a microwave digestion system. - yes 35 (46)
- Digested samples were then analyzed for total and - no 41 (54)
- samples (median) µg/g)
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)
- Mercury
- Mercury
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.