The National Ambient Air Quality Standards (NAAQS) are standards established by the United States Environmental Protection Agency under authority of the Clean Air Act (42 U.S.C. 7401 et seq.) that apply for outdoor air throughout the country. Primary standards are designed to protect human health, with an adequate margin of safety, including sensitive populations such as children, the elderly, and individuals suffering from respiratory diseases. Secondary standards are designed to protect public welfare from any known or anticipated adverse effects of a pollutant. A district meeting a given standard is known as an "attainment area" for that standard, and otherwise a "non-attainment area".
Read more about National Ambient Air Quality Standards: Standards, Air Quality Control Region
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“But the creative person is subject to a different, higher law than mere national law. Whoever has to create a work, whoever has to bring about a discovery or deed which will further the cause of all of humanity, no longer has his home in his native land but rather in his work.”
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“The quality of a marriage is proven by its ability to tolerate an occasional exception.”
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“If one doesnt know ones own country, one doesnt have standards for foreign countries.”
—Johann Wolfgang Von Goethe (17491832)