# Molybdenum, soluble compounds, as Mo — workplace exposure limit For Molybdenum, soluble compounds, as Mo, pel (mg/m³) is 0.5(n), verified against its source on 2026-09-29. - **Substance:** Molybdenum, soluble compounds, as Mo _(verified: appears in the quote below)_ - **PEL (mg/m³):** 0.5(n) _(verified: appears in the quote below)_ ## What the source says > Molybdenum, soluble compounds, as Mo | -- | 0.5(n) ## 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/).