# Molybdenum, insoluble compounds, as Mo — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Molybdenum, insoluble compounds, as Mo, pel (mg/m³) is 0.5 (n), verified against its source on 2026-08-05.

- **Substance:** Molybdenum, insoluble compounds, as Mo
- **PEL (mg/m³):** 0.5 (n)

## What the source says

> 7439987 | | Molybdenum, insoluble compounds, as Mo | -- | 0.5 (n)

## Source

- https://www.dir.ca.gov/title8/5155.html

Last verified: 2026-08-05. Review by: 2027-08-05.
Part of [US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side](https://referencesource.org/workplace-exposure-limits/).