2,4-Dinitrotoluene — workplace exposure limit
What is the pel (mg/m³) for 2,4-Dinitrotoluene — workplace exposure limit?
For 2,4-Dinitrotoluene, pel (mg/m³) is 0.15; cas no. is 25321146, verified against its source on 2026-08-05.
25321146 | S | 2,4-Dinitrotoluene | -- | 0.15
— dir.ca.gov, retrieved 2026-08-05
- Substance
- 2,4-Dinitrotoluene verified
- CAS No.
- 25321146 verified
- PEL (mg/m³)
- 0.15 verified
- NIOSH REL (mg/m³)
- TWA 1.5 per cdc.gov
What cdc.gov says
NIOSH REL Ca TWA 1.5 mg/m3 [skin]
— cdc.gov, retrieved 2026-09-08
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)
dir.ca.gov says pel (mg/m³) is 0.15, as of 2026-08-05.
25321146 | S | 2,4-Dinitrotoluene | -- | 0.15
https://www.dir.ca.gov/title8/5155.html
osha.gov says pel (mg/m³) is 1.5, as of 2026-08-05.
Dinitrotoluene | 25321-14-6 | - | 1.5 | X |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
Sources
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0235.html