Hazardous waste is that waste which has the potential to degrade public health and the environment as well. Hazardous waste possesses one or more of the following hazardous properties: Ignitability, Reactivity, toxicity, explosive, etc.
Hazardous wastes can be seen in different physical states such as gaseous, liquids, or solids. Hazardous waste is a different type of waste because it cannot be disposed of by common means like other waste. The treatment of hazardous waste depends upon the hazardous property a substance exhibits.
According to Hazardous Waste Rules (Management and Transboundary Movement), 2016. Hazardous waste means any kind of waste which by reason of any of its properties such as physical, chemical, or biological can cause danger or is likely to cause danger to living being & environment, whether alone or in contact with other substances.