The city is racing to put up 277 sensors. Once installed, Chicago will have the most high-quality air monitors in the country ...

While the sky has looked opaque today due to wildfire smoke, most of this smoke is elevated above the ground, minimizing air ...

With smoke lingering in the air, we delve into how it affects our health and environment. What are the latest readings? What ...

The Bay Area Air District has issued an air quality advisory in the region for Tuesday because of smoke from a wildfire in ...

Winds could blow smoke from the Bear Gulch fire burning on the Olympic Peninsula, bringing the potential for unhealthy air ...

Bay Area residents may see hazy skies and smell smoke, but the air district does not expect pollutant levels to exceed ...

Canadian wildfires burning across northern Manitoba and Saskatchewan are sending smoke through central Canada, the Great ...

Air quality alerts are in place again for the entire Western Slope as firefighters battle more than 20 fires. The Colorado ...

Air quality alerts are in place again for the entire Western Slope as firefighters battle more than 20 fires. The Colorado ...

For most of the past decade, forecasters have been able to use satellites to track these smoke plumes, but the view was only ...

Air quality has taken a serious hit across the United States as a two-fold blow of wildfires in the West and in Canada have sent smoke pouring across large sections of the country — a problem that’s ...