The Mountain West is known for big blue skies. But several cities here are among the nation’s worst for short-term air pollution levels, according to a new American Lung Association study. Wildfire smoke is an increasing factor, but so is smog from growing cities across the region.
The Clark County Department of Environment and Sustainability issued a first ever season-long advisory for ground-level ozone pollution and wildfire smoke, in effect from April 1 through Sept.
Car traffic took a big dip beginning in late March, and headlines celebrated clean air around the U.S. But an NPR analysis of EPA data tells a more troubling story.
The American Lung Association releases its State of the Air report every year, detailing the levels of particle air pollution and ozone in communities a
More Americans are breathing unhealthy air, even though overall air pollution has decreased in recent decades. In the tug-of-war between air regulations and climate change, global warming is winning.
Trichlorofluoromethane, or CFC-11, hurts the ozone layer and was phased out of production by 2010. Supposedly. But a NOAA study says CFC-11 emissions began to rise after 2012.
By tripling their emission of pollutants, Asian countries have contributed as much as 65 percent of a rise in ozone levels in the western U.S., scientists say.
