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Heavy Metal Index

of the world, including East Asia. Simultaneously, environmental pollutants are also an escalating problem in these regions.

Source

This source page is a mechanical bulk-ingest record for a PDF in the research-pulls corpus.

Page snapshot
Cited by10 pages
Metals measured6
Evidence tierB
Year2026

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:

  • (hazard ratio, 1.34; 95% confidence interval, 1.16–1.55) was demonstrated inverse associations with IBD. A study of 259
  • Mechanisms underlying these findings include gut microbi- and 43 normal controls) in Japan found that 40.2% of the chil-
  • 1,583 participants, long-term exposure to PM2.5 was associated was significantly more prevalent in CD (15.3%) than in UC
  • with a lower gut microbiome diversity.16 In a mouse model (5.9%; P < 0.05) and healthy controls (0%; P < 0.01).30
  • samples from individuals with and without IBD (n = 52 and styrene microplastics for 90 days showed decreased goblet
  • n = 50, respectively). Individuals with IBD (41.8 items/g of dry cells, disordered muscular layer arrangements and crypt struc-
  • 95% of participants, with polyethylene terephthalate and poly- and necroptosis was seen in mice exposed to nanoplastics.46
  • in fecal samples of 95% of the children in China.38 This study farming population.80 With respect to underlying mechanisms,
  • microbiota in patients with ulcerative colitis and irritable bowel ease risk, outcomes and underlying mechanisms. Gut 2025;
  • pesticide residues in 12 vegetables in 15 provinces in China. J 89. Ungaro R, Rajauria P, Torres J, et al. P0558 An integrative blood-
  • GEM) Project Research Consortium. Development and vali- grown vegetables. Agron Sustain Dev 2016;36:41.

Methods (brief)

  • ENVIRONMENTAL POLLUTANTS IN EAST ASIA levels in serum samples from 47 individuals from a residential
  • ome perturbations: in a Chinese study using stool samples from dren with IBD had subnormal zinc levels. Selenium deficiency
  • samples from individuals with and without IBD (n = 52 and styrene microplastics for 90 days showed decreased goblet
  • proportionately affected by air pollution driven by industrial of diverse toxicants in biological samples, environmental mix-
  • in fecal samples of 95% of the children in China.38 This study farming population.80 With respect to underlying mechanisms,
  • the United States, microplastics detected in stool samples orig- cells.49 Therefore, the breadth of pollutant sources ranging from
  • inflammation in pathology samples in patients with CD.39 In lenging for conventional epidemiological models to disentan-
  • that include samples from the preclinical period of individuals screening.83
    1. Livanos AE, Dunn A, Fischer J, et al. Anti-integrin avb6 auto- ulate PAHs using personal air samplers. Arch Environ Con-

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

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 -layout was 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.

CommitDateChangeDescription
b01ec52c2026-08-04major2 sections added
d49e450f2026-08-03major5 sections added; narrative text revised