Nonhazardous waste includes solid waste from wastewater treatment plants and air pollution control facilities as well as any other discarded solid, liquid and semisolid materials generated by industrial, mining, commercial, communal and agricultural activities. Nonhazardous waste includes a large variety of waste products and materials that do not threaten the lives or safety of humans, plants and animals upon exposure.
These nonhazardous waste materials may include natural substances, such as food scraps, as well as manmade materials such as cardboard and paper. In contrast to hazardous waste, which consists largely of medical, pharmaceutical and nuclear waste, nonhazardous waste products do not require special disposal techniques. They may be placed in landfills and dumps without restrictions.