History of Environmental ;
In the United States the Evolution of Environmental management is especially at 20th century.
1900 first air pollution studies.
1902 first water quality standard.
1908 first US drinking water chlorination.
1925 first mathematical model of water pollution.
1948 first federal clean water Act.
1970 Earth day.
1972 clean water Act & regulates water quality.
1974 Nuclear safety is managed by the Nuclear Regulatory commission.
In the United States the Evolution of Environmental management is especially at 20th century.
1900 first air pollution studies.
1902 first water quality standard.
1908 first US drinking water chlorination.
1925 first mathematical model of water pollution.
1948 first federal clean water Act.
1970 Earth day.
1972 clean water Act & regulates water quality.
1974 Nuclear safety is managed by the Nuclear Regulatory commission.
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