---
type: threshold
id: barium-soluble-compounds-as-ba-2
asset: workplace-exposure-limits
title: "Barium, soluble compounds, as Ba — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "7440393 | | Barium, soluble compounds, as Ba | -- | 0.5"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Barium, soluble compounds, as Ba"
pel_mgm3: "0.5"
verified: true
---
**Substance:** Barium, soluble compounds, as Ba

**PEL (mg/m³):** 0.5

> 7440393 | | Barium, soluble compounds, as Ba | -- | 0.5

Source: <https://www.dir.ca.gov/title8/5155.html>