Air quality conditions across several U.S. cities reached levels this week that federal agencies deem "unhealthy for sensitive groups," prompting health alerts and recommendations that children and ...

Ozone is a colorless gas composed of three atoms of oxygen. Ozone forms both in the Earth's upper atmosphere and at the surface. Where ozone forms determines whether it is helpful or harmful to your ...

An expert cautions that exercising indoors during high pollution days can increase harmful pollutant intake, suggesting safer ...

Poor air quality may be causing your skin irritation and itchy, dry throat. And with the nearly record-breaking summer heat set to continue at least through Labor Day, you'll need to understand the ...

NASHVILLE, Tenn. (WSMV) - Many times during the summer months, air quality alerts are issued for ground-level ozone. This is a common occurrence during the summer and it has to do with the different ...

CINCINNATI (WKRC) - An air quality alert was issued in the Tri-State for two days. The Southwest Ohio Air Quality Agency issued the air quality alert starting Sunday at 12 a.m. and in effect until ...

State DEC officials have issued an Air Quality Health Advisory for Niagara County over elevated levels of ozone that's in effect until 11 p.m. today. The DEC and DOH issue Air Quality Health ...

NEW YORK - An Air Quality Health Advisory is in effect for New York City and much of the surrounding area Tuesday. It's because of ground-level ozone. The advisory is in effect until 11 p.m. Tuesday.

WILDFIRE SMOKE IN NORTH CAROLINAHigher concentations of wildfire smoke from fires burning in the the western half of the United States have helped to keep North Carolina in an Code Yellow or moderate ...