air quality standards


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air quality standards

A general term for the standards of air quality (concentration of pollutants for an average length of time) set by the Environmental Protection Agency or equivalent body in a particular country. In the US, the standards are based on the concentration of 5 ambient air pollutants (SO2, particulate matter, carbon monoxide, ozone, and NO2).
References in periodicals archive ?
We strive every day to develop and implement strategies to help meet state and federal air quality standards,'' said Dick Baldwin, air pollution control officer.
The South Coast Air Quality Management District ("SCAQMD") has contributed to the funding of this project through its Carl Moyer Air Quality Standards Attainment program.
A federal mandate now in place prevents refineries such as Chevron, Tosco and Shell from selling an oxygenate-free gasoline in high-smog areas, including Southern California and the Sacramento region, even though the gasoline meets state air quality standards.
SCAQMD is a leader in setting air quality standards, not just for California but for the entire U.
Air district officials, however, said the new plan is strict enough to achieve federal air quality standards, and they vowed to fight the decision.
The ORYXE Energy International additive OR-LED is playing a key role in the City of Dallas' early adoption of the new, stricter air quality standards for diesel fuel in the state of Texas.
And SCAG's plan will allow the region to meet its mobility goals while still meeting environmental and air quality standards.
It's clear that there are factors that need to be disclosed beyond Asarco's five-year compliance history and how a restart of the facility would impact El Paso's progress toward achieving air quality standards for carbon monoxide and ozone.
Since 1992, for example, the number of days in which smog levels exceeded state air quality standards dropped from 191 days in 1992 to 151 days in 1996, according to the AQMD.
The State of Minnesota is among the few states included in the CAIR that is in compliance with all National Ambient Air Quality Standards for both fine particles and ozone.
Environmental Protection Agency (EPA) is taking the next steps in the Clean Air Act process to determine which areas of the country meet national air quality standards for ground-level ozone and sulfur dioxide.
In May, a federal court rejected industry challenges to EPA's new air quality standards.

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