Chromium and inorganic compounds: Hexavalent chromium compounds, as Cr(VI), Inhalable

CAS Number


Last Revised


TWA Limit




Ceiling Limit


Notes & Notations
  • ACGIH A1 - Confirmed human carcinogen (cancer causing)
  • ACGIH DSEN - Dermal sensitizer
  • ACGIH RSEN - Respiratory sensitizer
  • ACGIH Skin - Contributes to exposure by the skin route - Water soluble only
  • IARC 1 - Carcinogenic to humans (cancer causing)
  • OHSR 5.57 is applicable for this designated substance
  • No British Columbia exposure limit at this time. Check if this substance has other exposure limits or designations / health hazard notations.


If the substance you are searching has an entry that contains a size-selective fraction, form, or work activity, you should perform an additional search to confirm if other exposure limits may apply.

Ensure no workers are exposed to a substance that exceeds the exposure limits in accordance with OHSR 5.48.