"According to the Occupational Cancer Research Centre’s Burden of Occupational Cancer in Canada report, exposure to cancer-causing agents in the workplace is estimated to cause approximately 10,000 cancers in Canada each year.
The report identifies the following 13 occupational carcinogens that contribute the most to the cancer burden in Canada: arsenic, asbestos, benzene, chromium (VI) compounds, diesel engine exhaust, second-hand smoke, nickel compounds, polycyclic aromatic hydrocarbons (PAHs), radon, night shift work, silica (crystalline), solar ultraviolet radiation, and welding fumes..."