Conformity requirement that Metropolitan Planning Organizations must show that “building” or implementing a long-range plan or Transportation Improvement Program will provide more emissions reductions that “not building” or not implementing...
An area with air quality that meets or exceeds the U.S. Environmental Protection Agency (EPA) health standards used in the Clean Air Act. An area may be an attainment area for one pollutant and a non-attainment area for others. Non-attainment areas are those that have...
A collection of similar seemingly small sources of pollution from throughout the non-attainment area. Examples include lawn mowers, barbecue grills, and fireplaces.
Any motor fuel other than ordinary gasoline, especially those that result in lower levels of air pollutants (e.g. reformulated gasoline, natural gas, and liquid propane).
Acronym for Air Quality Index. The EPA (Environmental Protection Agency) developed the AQI to make reading ambient air data more understandable to the general public. When ambient air data is collected, the numbers are converted from their concentration levels into...
