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

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

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

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 ...

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

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

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 ...

Millions of people in Arizona are being advised to limit activity that contributes to air pollution, after an air quality alert was posted by the National Weather Service (NWS) in conjunction with ...

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

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

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