National ambient air quality standards


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National ambient air quality standards

The standards established by the EPA (Environmental Protection Agency) that apply to outdoor air throughout the country.
References in periodicals archive ?
EPA webinar, "Proposed Revisions to National Ambient Air Quality Standards for Ozone, December 2014.
Regulatory Impact Analysis for the Final Revisions to the National Ambient Air Quality Standards for Particulate Matter.
50, 51, 53 & 58); National Ambient Air Quality Standards for
TAKE ACTION: Write to the Environmental Protection Agency asking it to revise its secondary national ambient air quality standards and enact regulations to improve air quality in national parks and wilderness areas.
23) Regulatory Impact Analyses for the Particulate Matter and Ozone National Ambient Air Quality Standards and Proposed Regional Haze Rule, pp.
Last month, for example, just as the government announced it would disallow the EPA'S new National Ambient Air Quality Standards, the Ford Motor Co.
Au compares the measured sulfate concentrations in Kona to the National Ambient Air Quality Standards (NAAQS) for sulfur dioxide.
18) that about 67 million people lived in areas where the ozone concentration exceeded the National Ambient Air Quality Standards.
Seven years later, the agency set the National Ambient Air Quality Standards, which served as the primary mechanism to reduce lead in gasoline.
ICF has supported this office in developing risk assessment methods for hazardous air pollutants and implementing those methods in conducting residual risk assessments of numerous source categories, conducting exposure and risk assessments for all six criteria air pollutants in support of EPA's reviews of National Ambient Air Quality Standards, developing assessment methods and providing modeling support for EPA's National-scale Air Toxics Assessment (NATA), assisting EPA in the development of several reports to Congress, and supporting EPA's public outreach programs and health communications initiatives.
Environmental Protection Agency (EPA)'s final ozone National Ambient Air Quality Standards (NAAQS), which were lowered from 75 parts per billion (ppb) to 70 ppb.

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