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West Virginia v. Environmental Protection Agency, 597 U.S. 697 (2022), is a landmark decision of the U.S. Supreme Court relating to the Clean Air Act, and the extent to which the Environmental Protection Agency (EPA) can regulate carbon dioxide emissions related to climate change. The case centers on the Clean Power Plan (CPP) proposed by the ...
An air quality index (AQI) is an indicator developed by government agencies [1] to communicate to the public how polluted the air currently is or how polluted it is forecast to become. [2][3] As air pollution levels rise, so does the AQI, along with the associated public health risk. Children, the elderly and individuals with respiratory or ...
The Environmental Protection Agency (EPA) is an independent agency of the United States government tasked with environmental protection matters. [2] President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on December 2, 1970, after Nixon signed an executive order. [3] The order establishing the EPA was ...
The Environmental Protection Agency on Thursday awarded grants for projects to monitor air quality in 37 states, with a focus on minority communities and other areas overburdened by pollution. A ...
You can track air quality in your area in our map, in most weather apps, weather websites, the Florida Department of Environmental Protection's Air Quality Today map, or the EPA's AirNow.gov site.
In 1977, the EPA published a document which detailed the Air Quality Criteria for lead. This document was based on the scientific assessments of lead at the time. Based on this report (1977 Lead AQCD), the EPA established a "1.5 μg/m 3 (maximum quarterly calendar average) Pb NAAQS in 1978."
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 PM NowCast is a weighted average of hourly air monitoring data used by the United States Environmental Protection Agency (USEPA) for real-time reporting of the Air Quality Index (AQI) for PM (PM 10 or PM 2.5). The PM NowCast is computed from the most recent 12 hours of PM monitoring data, but the NowCast weights the most recent hours of ...