What Makes Hazardous Waste Hazardous?
What Makes Hazardous Waste Hazardous? EPA’s regulations in the Code of Federal Regulations (40 CFR) define four hazardous waste characteristic properties: ignitability, corrosivity, reactivity, or toxicity (see 40 CFR 261.21- 261.24). What are the 4 types of hazardous waste? When left inappropriately treated or managed, these wastes can have very harmful effects on the environment.