Mercury - Alkyl compounds, as Hg

CAS Number


Last Revised


TWA Limit

0.01 mg/m3


0.03 mg/m3

Ceiling Limit


Notes & Notations
Basis of B.C. Exposure Limit
Minimize the potential for:
  • Central and peripheral nervous system impairment
  • Developmental and reproductive toxicity
  • Eye, mucous membranes and skin irritation
  • Kidney damage
  • Note: There may be other potential health effects; refer to ACGIH TLV Documentation and other relevant references.

2 mg/m3

 (Source: NIOSH)
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.