Weld County officials are pushing for more transparency in the state’s development of ozone control strategies as they question data referenced by Gov. Jared Polis and state agencies in Polis’ ...

In December, the EPA bumped Colorado’s ozone nonattainment area status from moderate to serious. We talked to the experts to find out what that actually means. In this Wednesday, March 6, 2019, file ...

U.S. Rep. Jo Ann Emerson weighed in Wednesday on the question of whether three Southeast Missouri counties should be named as nonattainment areas for ozone pollution. Emerson, in a news release ...

The Weld County commissioners this week petitioned for a review of the Environmental Protection Agency’s final decision to extend the Denver Metro/North Front Range ozone nonattainment area to include ...

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SHEBOYGAN COUNTY - Wisconsin Department of Natural Resources staff presented updates on Sheboygan County’s air quality at a meeting last week. The meeting, hosted by citizen group Sheboygan Ozone ...

SAN ANTONIO – The U.S. Environmental Protection Agency has announced a plan to move Bexar County from “marginal nonattainment” to “moderate nonattainment” for ozone after the area failed to meet air ...

The U.S. Environmental Protection Agency has proposed changing El Paso County’s ozone pollution designation to “nonattainment,” or out of compliance with national air-quality standards, for the major ...

Federal regulators say El Paso ozone levels are too high and that Texas must do more to reduce emissions. Newly-constructed facilities and projects receiving federal funding in El Paso will now face ...

Wildfire haze this summer has obstructed mountain views and exacerbated Colorado Springs' ozone problems, making outdoor activity dangerous for some and putting the area at risk of no longer meeting ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — Ozone levels are now ...