Air Quality Successes - Criteria Pollutants
Texas has devoted significant resources to air quality monitoring and research during the past decade in order to better understand air quality and to develop effective controls when needed.
From 2000 to 2012, ozone levels in Texas have decreased by 23 Percent
- based on ozone design value as defined by EPA
- The rest of the nation averaged an 11% decrease in ozone levels.
- The eight-hour ozone levels for the Houston-Galveston-Brazoria (HGB) and Dallas–Fort Worth (DFW) nonattainment areas have been trending downward for the 1997 eight-hour NAAQS since 2000.
- As of 2008, Beaumont–Port Arthur, San Antonio, and El Paso ozone levels are below the 1997 ozone standard.
- The EPA has designated the El Paso area to be in attainment of the 1997 ozone standard.
- The EPA has redesignated the Beaumont area in attainment of the 1997 ozone standard.
Click on main image to view larger chart.
Ozone Trends: Bar Chart
Ozone Trends: Map
Houston vs LA
Houston vs LA AQI