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Section 202(a)(1) of the Clean Air Act requires the Administrator of the EPA to establish standards "applicable to the emission of any air pollutant from…new motor vehicles or new motor vehicle engines, which in [her] judgment cause, or contribute to, air pollution which may reasonably be anticipated to endanger public health or welfare" (emphasis added). [3]
The United States Congress passed the Clean Air Act in 1963 to legislate the reduction of smog and atmospheric pollution in general. That legislation has subsequently been amended and extended in 1966, 1970, 1977 and 1990. In 1968 AP 42 Compilation of Air Pollutant Emission Factors. Numerous state and local governments have enacted similar ...
Since the EPA first started regulating clean air in the 1970s, emissions of the most common air pollutants have dropped by almost 80%. But around Houston, there's still a long way to go.
The National Emission Standards for Hazardous Air Pollutants (NESHAP) are air pollution standards issued by the United States Environmental Protection Agency (EPA). The standards, authorized by the Clean Air Act, are for pollutants not covered by the National Ambient Air Quality Standards (NAAQS) that may cause an increase in fatalities or in serious, irreversible, or incapacitating illness.
The federal regulations don't mandate electric trucks or school buses, unlike California's tougher standards. But the EPA's rules will curtail a billion tons of greenhouse gas emissions each year.
In this instance, the EPA's approach "ignored obvious problems with its attempt to twist the Clean Air Act into a system of top-down regulation instead of the system of cooperative federalism that ...
The Clean Air Act 1968 [29] introduced the use of tall chimneys to disperse air pollution for industries burning coal, liquid or gaseous fuels. [30] The Clean Air Act was updated in 1993. [31] The biggest domestic impact comes from Part III, Smoke Control Areas, which are designated by local authorities and can vary by street in large towns.
The Clean Air Act requires the EPA to set US National Ambient Air Quality Standards (NAAQS) for the six CAPs. [6] The NAAQS are health based and the EPA sets two types of standards: primary and secondary. The primary standards are designed to protect the health of 'sensitive' populations such as asthmatics, children, and the elderly.