Air quality warnings spanning seven states on Tuesday are prompting advisories for millions of Americans to avoid outdoor exertion and indoor pollutants like candle.

A new study ranks California as one of the best states in the nation for lung health, citing lower smoking rates, cleaner air, and more favorable environmental conditions compared to much of the ...

Long-term air pollution exposure in adults, even at low levels, is linked to increased risk for pneumonia and other ALRIs requiring hospital care.