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Water pollution is the contamination of natural water bodies by chemical, physical, radioactive or pathogenic microbial substances. [2] Point sources of water pollution are described by the CWA as "any discernible, confined, and discrete conveyance from which pollutants are or may be discharged."
Nonpoint source (NPS) water pollution regulations are environmental regulations that restrict or limit water pollution from diffuse or nonpoint effluent sources such as polluted runoff from agricultural areas in a river catchments or wind-borne debris blowing out to sea. In the United States, governments have taken a number of legal and ...
Topsoil runoff from farm, central Iowa (2011). Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and manufacturing industries—although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1]
Globe at Night—initially a NASA educational program—crowdsourcing measurements of light pollution in the night sky; Microwave News—independent and not aligned with any industry or government agency—reporting on the health and environmental impacts of electromagnetic fields (EMFs) and other types of non-ionizing radiation
1972 – Federal Water Pollution Control Amendments of 1972 (P.L. 92-500). Major rewrite. 1972 – Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) (amended by Food Quality Protection Act of 1996) 1972 – Marine Protection, Research, and Sanctuaries Act of 1972; 1973 – Endangered Species Act (amended 1978, 1982)
Some environmental issues that environmental organizations focus on include pollution, plastic pollution, waste, resource depletion, human overpopulation and climate change. Intergovernmental organizations
By that time, National Association of Clean Water Agencies "had become an organization consulted by members of the federal government concerned with water pollution". [6] National Association of Clean Water Agencies worked closely with Congress on the 1977 Clean Water Act Amendment, securing $26 billion for municipal clean water construction ...
The United States Congress has enacted federal statutes intended to address pollution control and remediation, including for example the Clean Air Act (air pollution), the Clean Water Act (water pollution), and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA, or Superfund) (contaminated site cleanup).