Nearly half the nation’s children live in places with dangerous levels of air pollution, according to a report released ...

The new report evaluated air quality in different parts of the country by measuring the presence of ozone and particle pollution in the atmosphere.

Nearly half of all children in the U.S. live in counties that earned failing grades for at least one measure of air pollution ...

In the time it takes to type this sentence, I will have taken three breaths. Twelve in a minute, 20,000 a day, 7.5 million a year, most of them indoors. Yet until quite recently, researchers have not ...