EPA Determines Washington, DC-MD-VA Area Attained 2008 Ozone Standard by July 20, 2016

Summary

The Environmental Protection Agency (EPA) has made a final determination that the Washington, DC-MD-VA marginal ozone nonattainment area met the 2008 ozone national ambient air quality standard (NAAQS) by the July 20, 2016 attainment date, based on quality assured ambient air quality monitoring data for the 2013-2015 monitoring period.