Nitrotoluene, all isomers

CAS Number

99-08-1, 99-99-0, 88-72-2

Last Revised


TWA Limit

2 ppm



Ceiling Limit


Notes & Notations
  • ACGIH Skin - Contributes to exposure by the skin route
  • IARC 2A - Probably carcinogenic (cancer causing) to humans - 2-Nitrotoluene [88-72-2]
  • OHSR 5.57 is applicable for this designated substance
Basis of B.C. Exposure Limit
Minimize the potential for:
  • Anoxia
  • Methemoglobinemia
  • Note: There may be other potential health effects; refer to ACGIH TLV Documentation and other relevant references.

200 ppm

 (Source: NIOSH)
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Ensure no workers are exposed to a substance that exceeds the exposure limits in accordance with OHSR 5.48.