Major air pollutants have declined in recent decades, but USA TODAY’s analysis shows wildfire smoke is taking their place.

DEAR DR. ROACH: I've had muscle spasms and cramping in my lower legs and feet for quite some time. It almost always happens when I'm laying in bed and in the early morning hours. If I stand up and ...

Respiratory Analysers Market. The global respiratory analysers market is poised for significant growth, with a projected ...

Air purifiers can filter out allergens like mold, dust, pollen, smoke, and odors. We asked experts how to choose the air ...

The Port of Seattle’s Sustainable Airport Master Plan (SAMP), a proposal to expand Sea-Tac Airport with 31 construction ...