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Heavy Metal Index

Metals

Reference layer

Per-metal reference pages and source-map stubs for metals covered by the Heavy Metal Index corpus.

Overview

Core toxic-metal pages describe toxicology, typical exposure routes through food, food sources linked to ingredients, regulatory limits linked to regulations, analytical methods linked to testing, and microbiome effects where documented. Arsenic, mercury, chromium, and tin are maintained under separate species pages because the toxicological and regulatory implications of the species differ sharply: inorganic versus total arsenic, methylmercury versus total mercury, hexavalent versus total chromium, and organotin versus inorganic tin each have between two and three orders of magnitude separation in derived oral guidance values, and total-element measurement without speciation cannot be honestly mapped to toxicity-derived guidance. Nutrient elements such as Manganese and Zinc are included as graph stubs when they appear in infant-formula risk-assessment sources, but they are not HMTc toxic-metal analytes unless separately designated.

Metal Pages

Core toxic metals

Also tracked

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
a8052bb2026-08-09major3 sections added; narrative text revised