Nano cerium oxide

Safety Summary

Regulatory Status

Sources

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

• NIOSH: Occupational Exposure to Cerium Oxide Nanoparticles — Proposed REL (0.9 μg/m³ as Ce), Biopersistence, Pulmonary Inflammation Evidence, and Diesel Fuel Additive Context REGULATORY · 2013
• US EPA: Nanomaterial Case Studies — Nano Cerium Oxide in Fuel Additives and CMP Applications; Tailpipe Emissions; Biopersistent Pulmonary Hazard; Environmental and Human Health Assessment REGULATORY · 2014
• Cerium Oxide and Cerium Compounds | CASRN 1306-38-3 | DTXSID4040214 | IRIS | US EPA, ORD REGULATORY
• NIOSH Field Studies Team Assessment: Worker Exposure to Aerosolized Metal Oxide Nanoparticles in a Semiconductor Fabrication Facility - PMC REGULATORY
• identity database ECHA CHEM, Download all substances: REACH registrations (ECHA's own list of REACH-registered substances) REGULATORY · 2026
• 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
• where to look PAC Chemical Database, U.S. Department of Energy, as recorded by PubChem (Experimental Properties, CID 73963; where-to-look, not a source of this value) DATABASE · 2026

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