The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

Here's what to know. Last June, smoke from Canadian wildfires covered New York City in an orange haze and caused Detroit, Washington D.C., and New York City to rank among the cities with the worst ...

As wildfires rage in the Los Angeles area, air quality is deteriorating and health risks from air pollution mount. Here’s what to know about staying safe.

Last summer, smoke from Canadian wildfires drifted not only as far south as the mid-Atlantic region of the United States, but even across the Atlantic Ocean. We speak with John Vaillant ...

D.C. firefighters and emergency responders on Monday returned to the scene of two deadly fires that occurred within nine hours of each other and barely a half mile apart over the weekend.

Researchers have shown that plumes of wildfire smoke can carry contaminants hundreds of kilometers, leaving a toxic and ...

The experiments, conducted between 2022 and 2024, involved subjecting rats and mice to “extreme heat exposures,” simulated wildfire ... in smoke,” an EPA spokesperson told the Washington ...

Fire prevention staff and firefighters from the DC Fire and EMS Department returned to the scenes of two deadly fires that happened over the weekend to educate the community about fire safety and ...