Unlike typical wildfires, smoke from the L.A. fires — consisting of toxic materials from burned down homes, cars, and more — ...

The Air Quality Index measured 156 near Forks, Washington, and received a rating of "unhealthy," meaning some members of the ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...

Virtually all of Los Angeles is experiencing "unhealthy" air quality levels amid the devastating fires that ignited in early ...

Smoke from the blaze has significantly worsened air quality statewide, with some areas reporting hazardous levels exceeding 500 on the Air Quality Index (AQI).

AirNow is a collaborative effort of federal agencies that provides air quality data across the U.S. The site also has ...

A lobe of the Polar Vortex is going to swing through Ontario just north of Michigan. The upper-air forecast gives us an easy ...

Millions woke up to hazy skies and poor air quality Wednesday morning as crews continued to fight the Palisades Fire in ...

Air quality across parts of California is deteriorating to hazardous levels as strong winds drive rapid wildfire spread and stir up heavy dust.

We’re tracking the fires in Los Angeles, California. See maps of recently burned areas and key locations in the vicinity of ...

“Externally mounted sensors significantly increase aerodynamic drag, particularly by increasing the proportion of ...

The results will be considered under four headings, namely, responses to (1) air currents, (2) light, (3) humidity, and (4) temperature.