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Ozone Season Data Tracking

The Denver Metro/North Front Range area is designated as nonattainment by the U.S. Environmental Protection Agency (EPA) for the pollutant ozone. The 2015 8-Hour Ozone Standard is 70 parts per billion (ppb) and is calculated using a rolling three-year average of the...

Regulation 21 Approved by AQCC

The Regional Air Quality is pleased to announce that Regulation 21, the Low VOC Architectural and Industrial Maintenance (AIM) coatings and consumer products rule, was approved by the Air Quality Control Commission in a unanimous vote this past Thursday (July 18th). This was the culmination of a multiyear, collaborative effort between the RAQC and the Air Pollution Control Division. The rule will go into effect May 1st, 2020.

The rule will provide an estimated emissions credit of 10 – 16 tons/day of VOCs in the nonattainment area.

More information on the rulemaking process can be found here.