Hazardous chemicals are chemicals which have physical hazards or health hazards.
These chemicals may be components of some of the products that we use in our homes or offices. Our concern is the chemicals present in our offices. Chemicals generally form two kinds of hazards, physical and health. Physical hazards - include fire, reactivity, and explosion. Health hazards - include corrosives, irritants, sensitizers, toxics, carcinogens, and those which have target organ effects.