The dense fog comes amid a deteriorating Air Quality Index (AQI) in Delhi-NCR. The overall AQI of Delhi at 6:05 am on Friday ...

Certain masks are effective in protecting against wildfire smoke — but only if they are fitted and worn properly.

People are taking precautions as multiple wildfires cause poor air quality across a wide swath of Los Angeles County.

In Boyle Heights, a predominantly Hispanic/Latino neighborhood, residents face disproportionate exposure to toxic air ...

After the fires get under control, wind could help push some particles out of the air, as will gravity with some larger compounds. Gases and fine particles could hang around longer. In burned areas, ...

From December into January there have been numerous air quality alert days. The top contributor this time of year is the holiday fireworks.

The same Santa Ana winds spreading wildfire across southern California are blowing the smoke over the Pacific Ocean, not into ...

This finding suggests that the air we breathe plays a larger role in skin conditions than we previously thought.

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

Higher levels of air pollution are associated with slower average marathon finish times, according to findings published recently in the journal Sports Medicine. “Runners at that level are ...

The current spike in poor air quality has further worsened our exposure to pollutants. You may notice a sudden appearance of symptoms if you are exposed to high pollution levels, such as on a busy ...