Designated Substance Awareness
Designated Substance Awareness in Ontario’s Occupational Health and Safety Act (OHSA) refers to the regulations and guidelines aimed at controlling and limiting workers’ exposure to certain hazardous substances in the workplace. These substances are identified under Ontario Regulation 490/09 and include chemicals like asbestos, lead, mercury, and benzene, among others.
Employers are required to
Conduct workplace assessments to identify potential exposure to designated substances. Implement control programs that may include engineering controls, work practices, and personal protective equipment. Monitor air quality and maintain records of exposure levels. Provide medical surveillance for workers exposed to these substances. The goal is to protect workers from health risks associated with these hazardous substances, which can cause serious health issues such as cancer, respiratory problems, and other chronic conditions.