A designated substance is defined by the ministry of labor under the occupational health and safety act as “a biological, chemical or physical agent or combination thereof prescribed as a designated substance to which the exposure of a worker is prohibited, regulated, restricted, limited or controlled.” an exposure means exposure by inhalation, ingestion, skin absorption or skin contact. Designated substances include the following hazardous materials:
- Arsenic
- Asbestos
- Benzene
- Coke Oven Emissions
- Ethylene Oxide
- Isocyanates
- Lead
- Mercury
- Silica
- Vinyl Chloride
