CMD - Carcinogens and Mutagens Directive, Annex III - OELVs

This list contains occupational exposure limit values (OELs) for carcinogens and mutagens pursuant to Annex III of Directive 2004/37/EC (CMD). Employers are obligated to minimize worker exposure to these agents in so far as possible, and must arrange for medical surveillance of workers exposed to these substances.


EC / List no: 231-152-8 CAS no: 7440-43-9
Long-term Exposure Limit (LTEL) Values mg/m3
0.001 mg/m3
Carcinogen Category
1B Category 1B, presumed to have carcinogenic potential for humans, classification is largely based on animal evidence.
Physical form
Inhalable Fraction
Effective Date
11 July 2027

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