What are primary and secondary National Ambient Air Quality Standards (NAAQS)?
What will be an ideal response?
The National Ambient Air Quality Standards (NAAQS) provide the focal point for air pollution control. The administrator of the Environmental Protection Agency (EPA) establishes primary and secondary NAAQS for criteria pollutants. Primary standards are standards that the administrator determines are necessary to protect the public health, including an adequate margin of safety. Secondary standards are more stringent, as they are the standards that would protect the public welfare (crops, buildings, and animals) from any known or anticipated adverse effect associated with the air pollutant for which the standard is being established. Currently, the primary and secondary standards are the same for all criteria pollutants except sulfur dioxide. The administrator of the EPA retains the authority to establish new primary and secondary standards if scientific evidence indicates that the present standards are inadequate or that such standards must be set for currently unregulated pollutants.
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