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Legal agreement results in EPA taking action on deadly smog pollution in Denver, other cities
OAKLAND, CALIFORNIA—As a result of a lawsuit brought by a coalition of environmental groups, today the U.S. Environmental Protection Agency downgraded four areas across the country from a “serious” to a “severe” rating for their smog pollution. This downgrade in the ratings triggers more protective measures to reduce smog pollution.
The four areas, including the Denver Metro area, have some of the nation’s worst air quality. EPA downgraded the areas because their ground-level ozone pollution—commonly called smog—continues to exceed the levels that are safe for human health, wildlife, and plants.
“Recognizing that these areas have a severe smog problem marks an important step forward in reducing this pollution,” said Ryan Maher, an environmental health attorney at the Center for Biological Diversity. “Now it’s time for concrete plans to fix it.”
Smog pollution is linked to human health problems like asthma attacks, cardiovascular problems, and even premature death. Those most at risk include older adults, children and people who work outdoors. The harm smog does to plants can damage entire ecosystems and reduce biodiversity.
“For the more than 3.5 million people living in the Denver Metro and North Front Range region of Colorado, today’s finding gives new hope for clean air,” said Jeremy Nichols, climate and energy program director for WildEarth Guardians. “Now it’s up to Governor Polis and his administration to do the right thing and finally clean up this smoggy mess and restore healthy skies along Colorado’s Front Range.”
The four environmental groups sued the EPA in March 2022 after the agency missed its deadline to reclassify these areas from a serious to a severe rating for smog. The agreement resulting from this lawsuit required EPA to finalize the ratings for these four areas by today: the Dallas-Fort Worth and Houston-Galveston-Brazoria areas in Texas; the New York City metro areas of Connecticut, New York, and New Jersey; and the Denver-Boulder-Greeley-Fort Collins-Loveland area in Colorado.
“The 37 million people who live in these areas with unsafe levels of toxic pollution deserve clean air and immediate federal action,” said Kaya Allan Sugerman, director of the Center for Environmental Health’s illegal toxic threats program. “Today’s victory will help protect these communities from the dangers of this pollution.”
Under this agreement, EPA must also determine whether the smog ratings for Ventura County and western Nevada County in California need to be downgraded by December 16, 2022.
The downgraded ratings finalized today are part of the environmental groups’ ongoing effort to compel the EPA to protect human health and the environment from smog pollution in accordance with the requirements of the Clean Air Act.