Propoxur — workplace exposure limit
What is the niosh rel (mg/m³) for Propoxur — workplace exposure limit?
For Propoxur, niosh rel (mg/m³) is TWA 0.5; cas no. is 114-26-1, verified against its source on 2026-09-08.
NIOSH REL TWA 0.5 mg/m3
— cdc.gov, retrieved 2026-09-08
- Substance
- Propoxur verified
- CAS No.
- 114-26-1 verified
- NIOSH REL (mg/m³)
- TWA 0.5 verified
- PEL (mg/m³)
- 0.5 per dir.ca.gov
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
Substance
CDC - NIOSH Pocket Guide to Chemical Hazards - Propoxur
CAS No.
CAS No. 114-26-1
— all from cdc.gov, retrieved 2026-09-08
What dir.ca.gov says
114261 | | Propoxur; 2-isopropoxyphenyl N-methyl carbamate | | 0.5
— dir.ca.gov, retrieved 2026-08-05
Sources
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0531.html
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html