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Designated Substances Welcome Graphic


The following substances are specially regulated in Ontario:

Acylonitrile Arsenic Asbestos
Benzene Coke Oven Emmissions Ethylene Oxide
Isocyanates Silic and Vinyl Chloride Mercury
Lead    

If you use any of these materials, please notify Occupational Health & Safety (OHS) by completing an Inventory Form (Excel). Send the completed form to Anne Marie McCusker via e-mail. You must also ensure that you are familiar with the legislated requirements.

Western's Designated Substances Program PDF document
When a designated substance is present in the workplace, the Occupational Health and Safety Act requires the employer to review the work methods and assess the likelihood of worker exposure. When there is likelihood of worker exposure, a control program must be instituted that includes engineering controls, work practices, hygiene practices, training record keeping and medical surveillance, if applicable. (more...)

As Arsenic, Asbestos, Benzene, Lead, Mercury, Isocyanates and Silica are the only Designated Substances identified at Western, programs have been written for these five substances. As the list of substances increases, the programs will be expanded as necessary.

Additional steps such as air monitoring and health assessments may be required by OHS and Staff/Faculty Health Services.

If you have any other questions contact Tony Hammoud or Anne Marie McCusker.

Regulations:



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