Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.

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

Here's what to know about improving your air quality at home during a wildfire—these expert tips help you breathe easier when ...

As thousands of acres burn across Southern California, wildfire smoke is causing poor air quality in the region and beyond.

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

The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...

III and Stage-IV measures in response to the worsening air quality in New Delhi, aiming to protect residents' health.

A map from AirNow suggests that the air quality around Los Angeles and Anaheim, California, is unhealthy as the Palisades ...

Good (Green): 0-50 AQI means there is little or no health risk associated with air quality. Moderate (Yellow): 51-100 AQI ...

Officials are warning of windblown ash and other pollutants from Los Angeles-area fires and say air quality readers won't ...