Air Quality in the US: getting better? worse? staying the same?

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Clean Air Act

authorizes the EPA to establish the National Ambient Air Quality Standards (NAAQS) to protect public health and welfare

constant renewal of the process of standard of air quality

states submit information collected by monitors in both urban and rural settings

Air Quality in the US: getting better? worse? staying the same?

SO2-coal burning power plants

NO,NO2 combustion engines

CO2, H20- Clean combustion....Cars

Potentially getting worse

A link to opinion piece in the New York Times

A link to the EPA website talking about enforcement

EPA

monitoring systems

contingency measures

air quality monitoring

require certain large industrial facilities to install state-of-the-art air pollution regulators when they build new facilities.

emissions inventories: the accounting of the amount of pollutants in the atmosphere collected by many different state local and tribal air agency sources.