# Paraquat, total particulates — CAS 1910425 — workplace exposure limit For Paraquat, total particulates, pel (mg/m³) is 0.5; cas no. is 1910425, verified against its source on 2026-09-29. - **Substance:** Paraquat, total particulates _(verified: appears in the quote below)_ - **CAS No.:** 1910425 _(verified: appears in the quote below)_ - **PEL (mg/m³):** 0.5 _(verified: appears in the quote below)_ ## What the source says > 1910425, | S | Paraquat, total particulates | -- | 0.5 ## 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/).