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Heavy Metal Index

Metals
Metals
Toxicology, exposure routes, and regulatory limits, one page per metal.
All 36 metals
Most referenced
Lead1,510 pages
Cadmium1,616 pages
Arsenic875 pages
Mercury875 pages
Nickel814 pages
Chromium901 pages
Aluminum536 pages
By regulated species
Inorganic arsenic108 pages
Total arsenic382 pages
Methylmercury62 pages
Total mercury283 pages
Hexavalent chromium76 pages
Tin229 pages
Antimony104 pages
Cross-cuts
Limits by metal
Regulatory timeline
Upstream pathways
Testing methods2 pages
Foods
Foods & ingredients
Commodity-level contamination profiles: why an ingredient accumulates, and how much.
All 363 ingredients
Most studied
Rice265 pages
Cocoa70 pages
Fish305 pages
Leafy greens38 pages
Black pepper12 pages
Seaweed85 pages
Cinnamon19 pages
By commodity group
Fruits30 pages
Vegetables43 pages
Grains, cereals & bakery35 pages
Fish & seafood14 pages
Meat & poultry16 pages
Herbs, spices & botanicals13 pages
Beverages & water17 pages
Cross-cuts
Soil-to-plant transfer
Irrigation & soil amendments
Aquatic bioaccumulation
Atmospheric deposition
Products
Product categories
Consumer-category risk profiles, built from the ingredients that drive them.
All 416 categories
Infant & child
Infant formula, powder58 pages
Infant formula, soy33 pages
Rice-based baby cereal77 pages
Non-rice baby cereal37 pages
Fruit purees34 pages
Vegetable purees182 pages
Rice snacks & crackers13 pages
Other categories
Seafood369 pages
Shellfish453 pages
Seaweed & kelp foods209 pages
Bottled drinking water34 pages
Baby wipes93 pages
Baby lotion & cream20 pages
Mineral sunscreen160 pages
Cross-cuts
Packaging & food contact
Testing & verification2 pages
Limits by jurisdiction
Regulations
Regulations
Agency limits and action levels, with the body that set each one.
All 180 regulations
Key instruments
FDA Closer to Zero
EU lead limits, infant foods
EFSA cadmium TWI
California Prop 65 lead
EU nickel maximum levels
EU contaminants maximum levels
Codex cadmium MLs
Bodies
US FDA
EFSA
JECFA
Codex Alimentarius
US EPA
ATSDR
All bodies
Cross-cuts
By jurisdiction
Regulatory timeline
Limits by metal
Evidence
Evidence & methods
How the Index is built, what it covers, and where it is still thin.
The trust center
Methods
Methodology5 pages
Search strategy
Corpus coverage (PRISMA)
Editorial standards
Defensibility audits15 pages
The evidence base
Source archive3,261 pages
Synthesis findings30 pages
Testing methods2 pages
ICP-MS
EN 1811 nickel release
Cross-cuts
Errata & corrections
Licensing & reuse
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Heavy Metal Indextags

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Cite this page Version history

About the authorKaren Pendergrass

Standards architect and microbiome researcher connecting contaminant evidence, food exposure, and microbial metallomics.

Institute of Contaminant Standards · Paleo Foundation · Microbiome Medicine · WikiBiome

0000-0002-2348-7259 View biography & public works →

Author

Karen Pendergrass

2 items with this tag.

Manual resourcing batch, 2026-09-26, group 5 of 5
This report covers the group 5 slice of the 2026-09-26 Karen manual-resourcing batch. Thirty-one PDFs were read.
Updated Sep 27, 2026
- g
Percutaneous absorption of inorganic lead compounds
Inorganic lead as nitrate or acetate was absorbed through human forearm skin.
Updated Sep 27, 2026
- g