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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...

RTD Celebrates 10 Years of SW Lightrail

Denver, July 13, 2010 – This month, the Regional Transportation District (RTD) is marking the 10 years since the Southwest Light Rail Line opened. Banners will be on display this month at a dozen key light rail stations and transit centers, and information will be on...

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 and...

Regional Air Quality Council Helps ‘Mow Down’ Ozone Pollution

The Regional Air Quality Council (RAQC) hosted its sixth annual Mow Down Pollution Event in 2010 at the Ridgegate Community in south metro Denver on May 1, 2010.  The event was well attended and over 475 new Neuton green mowing machines were sold and over 350 older...

State Comments to EPA on New Ozone Standard

Comments on EPA's Proposed National Ambient Air Quality Standards for 8-Hour Ozone: State of Colorado - March 22, 2010National Association of Clean Air Agencies (NACAA) - March 22, 2010Western States Air Resource Council (WESTAR) - March 26,...

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...

Governor Ritter appoints 21 local leaders to serve on the the RAQC

Governor Ritter recently appointed 21 local leaders to serve on the the Regional Air Quality Council (click here to see a list of appointees). Appointees include appointed local government elected officials, business and citizen representatives, and experts in...

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