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

EPA

monitoring systems

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

air quality monitoring

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

contingency measures

A link to a table that shows improvement in air quality since 1980

Potentially getting worse

A link to the EPA website talking about enforcement

A link to opinion piece in the New York Times

CO2, H20- Clean combustion....Cars

NO,NO2 combustion engines

SO2-coal burning power plants

Clean Air Act

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

constant renewal of the process of standard of air quality

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