Locals reportedly complained about their eyes burning and their throats aching after Tehran experienced 'black rain.' ...

US-Israeli strikes on oil facilities have caused black rain to fall on Tehran, but the black smoke filling the air is likely ...

Air pollution causes millions of premature deaths worldwide each year, with fine particulate matter (PM2.5) identified as a ...

Dense smoke from Canadian wildfires is drifting across the U.S., canceling flights and sporting events, and threatening severe health problems for millions of Americans. Chicago's air quality now ...

Californians have long dealt with wildfire smoke as a seasonal fact of life, but those fires have become more intense and frequent, raising the profile of wildfire smoke as a public health issue. Now, ...

A new study finds that smoke particles in the stratosphere can trigger chemical reactions that erode the ozone layer -- and that smoke particles from Australian wildfires widened the ozone hole by 10 ...

The Los Angeles wildfires have caused devastating losses of homes and lives — and survivors may also face hidden, although still potentially very dangerous, health effects. Wildfire smoke contains a ...

WASHINGTON, D.C., USA — The primary topic of discussion the last couple days has been the smoke from wildfires in Canada that has infiltrated the skies over most of the mid-Atlantic and Northeast. It ...

Delphine Farmer is a professor of chemistry at Colorado State University. When wildfire smoke turns the air brown and hazy, you might think about heading indoors with the windows closed, running an ...

Officials with the Jefferson County Department of Health are speaking out about the smoke in the air across Central Alabama.

You may not have family, friends, or property in the Southern California area that’s being ravaged by fast-moving wildfires, so you may think the fires won’t affect you. Depending on where you live, ...