Environmental Protection Agency (EPA), independent agency of the U.S. government, with headquarters in Washington, D.C. It was established in 1970 to reduce and control air and water pollution pollution, contamination of the environment as a result of human activities. The term pollution refers primarily to the fouling of air, water, and land by wastes (see air pollution ; water pollution ; solid waste ).
..... Click the link for more information. , noise pollution noise pollution, human-created noise harmful to health or welfare. Transportation vehicles are the worst offenders, with aircraft, railroad stock, trucks, buses, automobiles, and motorcycles all producing excessive noise. Construction equipment, e.g.
..... Click the link for more information. , and radiation radiation (rā'dēā`shən)
..... Click the link for more information. and to ensure the safe handling and disposal of toxic substances. The EPA engages in research, monitoring, and the setting and enforcement of national standards. It administers the Environmental Response, Compensation and Liability Act of 1980, popularly called "Superfund," an act aimed at restoring toxic waste sites by making the responsible parties finance their cleanup. It also issues statements on the impact of operations of other federal agencies that are detrimental to environmental quality, and it supports the antipollution activities of states, municipalities, and public and private groups.

Environmental Protection Agency (EPA)

U.S. government agency that sets and enforces national pollution-control standards. It was established by Pres. Richard Nixon (1970) to supersede a welter of confusing and ineffective state environmental laws. Its early accomplishments include banning the use of DDT (1972), setting deadlines for the removal of lead from gasoline (1973), establishing health standards for drinking water (1974), and monitoring fuel efficiency in automobiles (1975). The EPA's enforcement was in large part responsible for a decline of one-third to one-half in most air-pollution emissions in the U.S. from 1970 to 1990, and during the 1980s the pollution standards index improved by half in major cities; water quality and waste disposal also improved significantly. The EPA also oversees the cleanup of abandoned waste sites through Superfund. Its existence has resulted in heightened awareness and concern for the environment worldwide.