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Air Modeling Technical Documents

Technical documents and reports related to air quality modeling.

Federal Clean Air Act (FCAA), §179B(b) allows states to develop and submit to the U.S. Environmental Protection Agency (EPA) a demonstration that a nonattainment area would have attained a National Ambient Air Quality Standard (NAAQS) “but for” emissions emanating from outside the U.S. This page provides details and documents related to the §179B(b) demonstrations that TCEQ submitted to EPA for the 2008 and 2015 eight-hour ozone NAAQS.

Federal Clean Air Act (FCAA), §179B(b) allows states to develop and submit to the U.S. Environmental Protection Agency (EPA) a demonstration that a nonattainment area would have attained a National Ambient Air Quality Standard (NAAQS) “but for” emissions emanating from outside the U.S. This page provides details of such a demonstration for El Paso.