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 ...

In a world of increasing wildfires and invisible irritants, we consulted with experts to explain why and how to measure air quality in your home and take steps to correct it. By Terri Williams ...

ST. PAUL — Many Minnesotans look forward to walks and runs in the state’s parks and trails this time of year, but wildfires in Canada have meant smoky skies over the past few days. The Minnesota ...

MICHIGAN, USA — The past several days have been smoky and hazy due to Canadian wildfires. These fires have created smoke plumes that have traveled thousands of miles and impacted air quality across ...

Parts of India, including the capital Delhi, were once again covered in thick smog recently as toxic pollution from industry ...

Firefighters work inside a burned structure. After California’s Eaton fire was suppressed in January, invisible gases continued to permeate the air, exposing residents and first responders to ...

Smoke from raging Canadian wildfires is once again worsening air quality in some U.S. states. Parts of the Dakotas, Minnesota, Wisconsin, Illinois, Indiana, Ohio and other states were all experiencing ...

An increasing number of U.S. cities historically known for clean air are now facing dangerous pollution levels in 2025, according to a new report by the American Lung Association (ALA), creating an ...

Escaping the sickening air pollution triggered by the ongoing wildfires in Los Angeles has become a game of which algorithm to trust. After the blazes first ignited last week, residents began noticing ...

There's confusion over how safe air quality is in L.A. as fires continue to burn, spewing wildfire smoke and toxins. We look at air quality readings, what's real and what's not and what people can do.

Smoke from wildfires raging in Canada has drifted into the United States, affecting air quality as far south as Florida and creating a "very unhealthy" situation in parts of Minnesota on June 3, ...