HealthDay News — Early-life ozone (O 3) exposure is associated with asthma and wheeze outcomes at 4 to 6 years of age, according to a study published online April 2 in JAMA Network Open.

PHOENIX — A recent American Lung Association study found that Phoenix has the fourth worst air quality in the U.S.

PHOENIX — The air quality in Phoenix was rated the fourth worst in the country, according to an annual American Lung ...

Ochre body paint may have been a form of prehistoric sunscreen that helped early humans survive a sudden increase in ultraviolet (UV) radiation around 41,000 years ago.

Bob Molinaro also covers such topics as college basketball’s high-priced rosters, the NFL draft and NBA stars Steph Curry and ...

Five facilities near schools and houses in L.A. County fumigate produce shipped from overseas with methyl bromide. But the air agency doesn’t plan to monitor the air or take any immediate steps to ...

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State of the Air grades are based on the number of days a county’s air reaches unhealthful levels on the Air Quality Index.

Cheyenne was ranked the eighth-cleanest city in the nation for year-round average particle pollution, while Casper was ranked first in the country in the newest “State of the Air” report from the ...

Wondering what the UV Index means, who created it or how to read UV Index numbers? This easy guide breaks down the UV Index ...

Earth's atmosphere is divided into several distinct layers, each characterized by specific temperature variations, composition, and phenomena. Below are the primary layers of the atmosphere, from the ...

Despite improvements in air quality in past decades, 156 million Americans still breathe in too much soot or ozone, says the ...