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deciduous rapidly growing tree of China with foliage like sumac and sweetish fetid flowers; widely planted in United States as a street tree because of its resistance to pollution Ailanthus altissima , tree of heaven , tree of the gods
pollution of the atmosphere air pollution
pollution that is rendered harmless by natural processes and so causes no permanent harm biodegradable pollution
exhaust system reducing pollution catalytic converter
someone who works to protect the environment from destruction or pollution conservationist , environmentalist
person or organization that causes pollution of the environment defiler , polluter
independent federal agency established to coordinate programs aimed at reducing pollution and protecting the environment Environmental Protection Agency , EPA
activity of protecting the environment from pollution or destruction environmentalism
radioactive pollution fallout
moral corruption or pollution filthiness
agency in the Department of the Interior that conserves and protects fish and wildlife and their habitats; assesses the environmental impact of pesticides and nuclear power site and hydroelectric dams and thermal pollution FWS , United States Fish and Wildlife Service , US Fish and Wildlife Service
pollution resulting from an industrial plant discharging pollutants into the atmosphere industrial air pollution
pollution that accumulates in the environment and may appear in the food chain nonbiodegradable pollution
spatially constricted by concentrated source (especially of radiation or pollution) point source
air pollution caused by fine particles of soot (as from power plants or diesel engines) small-particle pollution
air pollution by a mixture of smoke and fog smog , smogginess
pollution of the water in rivers and lakes water pollution
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