# Iron salts, soluble, as Fe — workplace exposure limit For Iron salts, soluble, as Fe, pel (mg/m³) is 1, verified against its source on 2026-09-29. - **Substance:** Iron salts, soluble, as Fe _(verified: appears in the quote below)_ - **PEL (mg/m³):** 1 _(verified: appears in the quote below)_ ## What the source says > Iron salts, soluble, as Fe | -- | 1 ## Source - https://www.dir.ca.gov/title8/5155.html Last verified: 2026-09-29. Review by: 2027-09-29. Part of [US workplace chemical exposure limits: federal OSHA, Cal/OSHA and NIOSH, side by side](https://referencesource.org/workplace-exposure-limits/).