News

Media Contact: Jenn Fields, jfields@raqc.org or 303-502-7342. 

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4th Maximum Ozone Values Table (ppb) through August 15, 2010

Click here to view the updated table. The ozone standard set by the U.S. Environmental Protection Agency (EPA) is calculated using a rolling three-year average of the fourth (4th) maximum 8-hour ozone concentrations.  An official violation occurs when the rolling...

Leaders Convene For Air Quality, Transportation and Land Use Workshop

DENVER – On June 4, the Regional Air Quality Council will convene and co-host a meeting of leaders from across the community and the Country to advance the region's understanding of ways to improve air quality, through such efforts as connecting transportation...

EPA Fact Sheet on Proposal to Revise the NAAQS for Ozone

On January 6, 2010, the Environmental Protection Agency (EPA) proposed to strenthen the national ambient air quality standards (NAAQS) for ground-level ozone, the main component of smog.  The proposed revisions are based on scientific evidence about ozone and its...