Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

The Air Quality Index does not take into account many gas or particle contaminants that are produced during wildfires, particularly when houses, cars and other man-made materials go up in flames ...

Specialized air quality instruments captured a spike in lead, chlorine, and bromine pollution during the L.A. wildfires.

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

Air purifiers are a great tool for improving your indoor air quality. You could also invest in a sensor just so you know what you are working with. Adding fans to enclosed areas is another way to ...

Most if not all of the county is showing up in green on the map, with air quality measuring in the 30s. Great news, right? While this no doubt it’s a huge improvement over the alarming numbers ...

“Air quality is not measured in every location,” said Tim Dye of TD Environmental Services. “There could be dust in the air. There could be local smoke that's not picked up by these monitor ...

How trustworthy is AQI (Air Quality Index)? What is PM2.5 ... because after 30 minutes or so the carbon dioxide concentrations actually build up inside the car and can make you sleepy. Also some cars ...

Arizona is the only state with 'unhealthy' air quality. Part of it stems from our geography, but part also comes from our choices.