Twin Cities metro area meets air quality standards for carbon monoxide.
In November, the Twin Cities region went into attainment for carbon monoxide air quality, which means the region has met or done better than national air quality standards for more than 20 years. The Council has prioritized reducing emissions in several transportation programs.

More than 40 years of clean air policies and regulations from the U.S. Environmental Protection Agency have improved air quality, safeguarding peoples’ health and sustaining the environment. The 1970 Clean Air Act gave the agency authority to set and implement emissions standards to control pollut…

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METROCOUNCIL.ORG

Region meets air quality standards for carbon monoxide – Metropolitan Council

More than 40 years of clean air policies and regulations from the U.S. Environmental Protection Agency have improved air quality, safeguarding…