Manganese fume (as Mn) — CAS 7439-96-5 — workplace exposure limit
What is the pel (mg/m³) for Manganese fume (as Mn) — CAS 7439-96-5 — workplace exposure limit?
For Manganese fume (as Mn), pel (mg/m³) is disputed: (C)5 per osha.gov, 0.2 per dir.ca.gov; cas no. is 7439-96-5, verified against its source on 2026-08-05.
Manganese fume (as Mn) | 7439-96-5 | - | (C)5 | - |
— osha.gov, retrieved 2026-08-05
- Substance
- Manganese fume (as Mn) verified
- CAS No.
- 7439-96-5 verified
- PEL (mg/m³)
- (C)5 sources disagree
- STEL (mg/m³)
- 3 per dir.ca.gov
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
PEL (mg/m³)
osha.gov says pel (mg/m³) is (C)5, as of 2026-08-05.
Manganese fume (as Mn) | 7439-96-5 | - | (C)5 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 0.2, as of 2026-08-05.
7439965 | | Manganese fume, as Mn | -- | 0.2 | | -- | 3
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html