Skies over metro Phoenix were hazy and gray Tuesday morning. Here's what is causing poor air quality in Phoenix and when it ...

PHOENIX — Tuesday’s sunrise lit up a hazy sky over the Valley, and air quality levels are poor in some areas. The haze was ...

Persistent fires led to a haze of air pollution blanketing Oxnard, California. Dramatic footage captured an eerie scene, turning the sky a light orange and covering 598 Town Centre Drive with ...

WASHINGTON — The air quality is showing signs of improvement Saturday afternoon after starting with unhealthy air. As of noon ...

Haze conditions vary across the country. Eastern U.S. areas have more haze due to higher pollutant and humidity levels. Half a century ago, coal plants belched pollutants into the atmosphere with ...

MRI evidence shows modest urban haze stiffens heart tissue, marking air pollution as a stealth cardiac saboteur beyond ...

Extreme heat is making air pollution worse, scientists say. And President Trump’s regulatory rollbacks could drive air ...

Phoenix skies were already hazy with dust from winds. The July 4 fireworks from the store could make it worse.

Ashtabula County skies have seen hazy conditions, as smoke from the ongoing Canadian wildfires has blown across the midwest. County Health Department Director of Environmental Health Randall Barnes ...

The report by the Royal College of Physicians warned there is "no safe level" of air pollutants as it noted how exposure to ...

Arizona’s Family Investigates the background and Arizona connections of Wess Roley, who authorities say intentionally set a ...

A season ticket holder will not be welcomed back to Chase Field for this year's D-Backs season after interfering in the game ...