Summary
The March 2007 EPA Ecological Soil Screening Level (Eco-SSL) document for nickel provides soil concentration thresholds below which exposure is presumed to pose acceptably low ecological risk to plants, soil invertebrates, birds, and mammals. Eco-SSLs are screening tools for hazardous-waste-site evaluations under CERCLA, not human-health regulatory limits. The values are relevant to the wiki primarily as a supply-chain reference for evaluating agricultural soils for nickel contamination, given EFSA’s 2020 finding that dietary nickel exposure routinely exceeds the TDI in subpopulations.
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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.
| Commit | Date | Change | Description |
|---|---|---|---|
| a8052bb | 2026-08-09 | major | 3 sections added; narrative text revised |