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

PHOENIX — Temperatures are staying above average for now, with air quality alerts in effect through Christmas Day in the Valley. The Maricopa County Air Quality Department has issued a "No Burn ...

But he added the EPA have also updated the air quality index, so there will be more accurate reporting going ... “The 24-hour standard is what is most protective of communities that live closest ...