Thick haze blanketed the Front Range on Friday, blocking the sun and views of the mountains for most of Colorado's population. The haze is smoke that has traveled from dozens of wildfires currently ...

A visible haze and smell of smoke covered many areas of the city Monday evening, including downtown, caused by scheduled prescribed burns.

Episodes of haze and burning smells have occurred intermittently in recent months. Read more at straitstimes.com. Read more at straitstimes.com.

Sometimes it's Saharan dust and other times it's just regular old fog, but this time it's different. If you looked outside on ...

There are 156 national parks and wilderness areas designated under the Clean Air Act as “Class 1 areas,” meaning they have specific air quality protections. However, most national parks experience ...

An unexpected thick haze, similar to fog, had blanketed North India on Tuesday, affecting residents in Meerut, Muradabad, ...

Experts call phenomenon normal; moisture in air condenses into tiny droplets which settle on dust particles, creating haze ...