Since the Clean Air Coalition initiated its first voluntary air quality plan in 2002 – the 1-Hour Ozone Flex Plan – the Austin-Round Rock MSA has had the steepest drop in ozone levels of any near-nonattainment area in the state in terms of both absolute reduction and percent reduction.The only area of the state with a larger absolute or percent reduction was the Houston-Galveston-Brazoria nonattainment area.Is the Texas capital area in compliance with national air quality standards?Explore the current state of the region's air with a look at monitoring data and more.As of 2012, all parts of the CAPCOG region are both designated attainment and measuring attainment for all National Ambient Air Quality Standards (NAAQS).EPA uses air quality monitors operated by the Texas Commission on Environmental Quality (TCEQ) to determine if a region is in attainment of the NAAQS or not.
While the region is currently in attainment of all NAAQS, its ozone levels sometimes reach levels currently considered unhealthy by the U. Environmental Protection Agency, and the region’s design value for 2012 is 99 percent of the ozone NAAQS.
If the data reported on TCEQ’s website for 2013 are certified, it will drop to 97 pecent of the NAAQS, and the region’s controlling monitor will shift from CAMS 3 (Murchison Middle School) to CAMS 38 (Austin Audubon Society).
Since 1999, the region’s ozone design value has steadily declined, although reductions in the design value have slowed in recent years.
Over this entire period, design values have decreased, on average, by 1.27 parts per billion per year.
Although EPA has not posted the official design values for all pollutants for 2013, the data as reported on TCEQ’s website for the region indicates that it will continue to be in attainment of all NAAQS for 2013 as well.
The table below shows all of the NAAQS that are currently in effect for the six “criteria” pollutants, along with the "design value" for the region (the statistic that EPA uses to determine compliance): Click here to learn more about NAAQS and how design values are calculated The figure below summarizes the region’s 2012 design values as a percentage of the current standard.