Waste and wastes are unwanted or unusable materials. Waste is any substance which is discarded after primary use, or it is worthless, defective and of no use.

The term is often subjective (because waste to one person is not necessarily waste to another) and sometimes objectively inaccurate (for example, to send scrap metals to a landfill is to inaccurately classify them as waste, because they are recyclable). Examples include municipal solid waste (household trash/refuse), hazardous waste, wastewater (such as sewage, which contains bodily wastes (feces and urine) and surface runoff), radioactive waste, and others.


United Nations Environment Program

According to the Basel Convention,

United Nations Statistics Division, Glossary of Environment Statistics

European Union

Under the Waste Framework Directive, the European Union defines waste as "an object the holder discards, intends to discard or is required to discard."


There are many waste types defined by modern systems of waste management, notably including:

Latest News for: Salem waste


Salem manufacturer, Aurora heliport facility among 18 fined for environmental violations

The Register Guard 01 Apr 2024
Among those fined are a Salem manufacturer that improperly stored and shipped hazardous waste, an Aurora heliport facility that failed to perform required monitoring and a Coos Bay log storage yard illegally open-burning creosote-treated timbers ... Wireless Structures Consulting dba Western Utility Telecom, Salem, $16,400....