What is a chemical or biological hazard that is present at a facility where you have worked or that you are familiar with.

What is a chemical or biological hazard that is present at a facility where you have worked or that you are familiar with. What are the properties of the hazard that would affect the exposure potential in an occupational setting. Summarize the potential health effects associated with the hazard. how would you go about ensuring that the health effects on the facility were properly mitigated if you were an industrial hygienist or safety officer?