---
type: threshold
id: cobalt-metal-dust-and-fume-as-co
asset: workplace-exposure-limits
title: "Cobalt metal, dust, and fume (as Co) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
source_quote: "Cobalt metal, dust, and fume (as Co) | 7440-48-4 | - | 0.1 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Cobalt metal, dust, and fume (as Co)"
cas_number: "7440-48-4"
pel_mgm3: "0.1"
verified: true
---
**Substance:** Cobalt metal, dust, and fume (as Co)

**CAS No.:** 7440-48-4

**PEL (mg/m³):** 0.1

> Cobalt metal, dust, and fume (as Co) | 7440-48-4 | - | 0.1 | - |

Source: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1>