The term hazardous substance, as used in this manual, refers to any material that may present a danger to human health and welfare or the environment. This includes hazardous chemicals (e.g., laboratory chemicals, pesticides, and dyes) and bio-hazardous materials (infectious materials).
Particularly Hazardous Substances are a subset of hazardous chemicals that require special consideration and additional safety provisions, because of their toxic effects. Select carcinogens, reproductive toxins, and substances with a high degree of acute toxicity are Particularly Hazardous Substances. More information about these substances is provided throughout this manual. However, radioactive material is excluded; this material will not be used in Alfaisal University.