Search results
Results from the WOW.Com Content Network
The six criteria air pollutants were the first set of pollutants recognized by the United States Environmental Protection Agency as needing standards on a national level. [5] The Clean Air Act requires the EPA to set US National Ambient Air Quality Standards (NAAQS) for the six CAPs. [ 6 ]
The Clean Air Act (CAA) is the United States' primary federal air quality law, ... The amendments moved considerably beyond the original criteria pollutants ...
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 criteria pollutants and their respective limits are defined in the National Ambient Air Quality Standards, which were a part of the Clean Air Act Amendments of 1970 (P.L. 91-604, Sec. 109). The EPA has regulated each criteria pollutant through two different standards, primary and secondary. [2]
Subchapter C - Air Programs (Parts 50 - 97) (Clean Air Act) [2] National Ambient Air Quality Standards (NAAQS) Criteria air contaminants; Requirements for Preparation, Adoption and Submittal of Implementation Plans; Approval and Promulgation of Implementation Plans; Ambient Air Monitoring Reference and Equivalent Methods; Prior Notice of ...
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.
They also know that Justice Ruth Bader Ginsburg’s 2011 majority opinion in American Electric Power Co., Inc. v. Connecticut held that the Clean Air Act and the Environmental Protection Agency ...
The AQI is based on the five "criteria" pollutants regulated under the Clean Air Act: ground-level ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide. The EPA has established National Ambient Air Quality Standards (NAAQS) for each of these pollutants in order to protect public health.