Chlorite (ClO₂⁻)

Safety Summary

Regulatory Status

Sources

These citations are the ones recorded for the human adult context.

• US EPA: Stage 1 Disinfectants and Disinfection Byproducts Rule (40 CFR Parts 141 and 142) — Chlorite MCL 1.0 mg/L, Bromate MCL 10 μg/L, TTHM MCL 80 μg/L, HAA5 MCL 60 μg/L (1998) REGULATORY · 1998
• WHO Guidelines for Drinking-water Quality (4th edition, incorporating the 1st and 2nd addenda, 2022) — Disinfection Byproducts: THMs, HAAs, Chlorite, Bromate, Chloral Hydrate; Guideline Values and Health Basis REGULATORY · 2022
• Guidelines for drinking-water quality: fourth edition incorporating the first, second and third addenda REGULATORY
• IARC Monographs, List of Classifications REGULATORY · 2026
• Chlorite (sodium salt) | CASRN 7758-19-2 | DTXSID8021272 | IRIS | US EPA, ORD REGULATORY
• identity database ECHA CHEM, Download all substances: REACH registrations (ECHA's own list of REACH-registered substances) REGULATORY · 2026
• where to look PubChem: Toxicity section (CID 23668197) PUBCHEM
• OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26) REGULATORY
• Permissible Exposure Limits – OSHA Annotated Table Z-1 REGULATORY

Same data as the API response, which is open and needs no key. The full per-record source list is available to authenticated callers.