air pollution

Letter to the EPA Inspector General Requesting Review of Colorado Air Quality Non-Enforcement (PDF)

by | March 30, 2021
DESCRIPTION: Request for Review of Intentional Non-Enforcement of National Ambient Air Quality Standards by Colorado Department of Public Health & Environment Pursuant to State Implementation Plan Under the Clean Air Act, 42 U.S.C. § 7401 et seq. TO: EPA, Office of the Inspector ...

Colorado Orders Staff to Ignore Air Pollution Violations  

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Air Modelers Request Federal Intervention and Whistleblower Protection ...

Beyond 2020: Pollution Enforcement

by | January 13, 2021
The strength of pollution regulation in the U.S. relies on enforcement, and the agency in charge is falling down on the job ...

I-70 Expansion Modeling Report (PDF)

by | May 8, 2018
Air Modeling for PM 2.5 & PM 10 for I-70 East Phase1 demonstrates that the project will violate NAAQS PM 2.5 ...

Who Turned off Air Pollution Monitor During Bridge Closure?

by | February 27, 2014
U.S. EPA to Investigate Why Key Air Monitor Went Offline for Nearly Three Days ...