Ozone pollution isn’t just a summer story anymore. In parts of northern China, high ozone levels are now appearing during winter—an alarming twist that defies decades of air quality science. This ...

TOLEDO, Ohio — The Toledo Metropolitan Area Council of Governments (TMACOG), as well as the city of Toledo, is warning the public of health risks that come with increased ground-level ozone in the ...

With pollution dropping, U.S. EPA proposes redesignating Northeast Ohio's air quality status, potentially ending E-Check ...

More than one-third of Americans live in places with unhealthy levels of air pollution, according to an annual report published by the American Lung Association. The 24th iteration of the State of the ...

After years of failing to meet Clean Air Act standards, metro Phoenix won its argument that nonlocal ozone shouldn't count.

The data showed that in all three years preceding MS onset, kids with MS had been exposed to significantly higher levels of ...

Getting your Trinity Audio player ready... The Front Range recorded its lowest ozone levels in 16 years this summer, but the region still needs to reduce air pollution to escape federal oversight that ...

MINNEAPOLIS — The Minnesota Pollution Control Agency has issued an air quality alert for several parts of Minnesota, including the Twin Cities. The alert, which was issued due to ozone concerns, will ...

The Center for Biological Diversity sued the Colorado Department of Public Health and Environment for taking too long to ...