Occupational
health hazards illness normally develops over a period of time because of workplace conditions. Such conditions might include exposure to disease-causing bacteria and viruses, for example, or to chemicals or dust. Under the Occupational
Health and Safety Act, occupational illness is defined as a condition that results from exposure in a workplace to a physical, chemical or biological agent to the extent that the normal physiological mechanisms are affected and the
health of the worker is impaired
Relevant Topics in Medical Sciences