That's why many Coloradans take notice when something, like wildfire smoke or smog, affects our bluebird skies. So, what ...

As Canadian wildfire smoke returns to the Chicago area, an air quality alert has been issued for most of the region. The Air Pollution Action Day was issued by the Illinois Environmental Protection ...

The New York State Department of Environmental Conservation has issued an Air Quality Health Advisory for Tuesday, July 15, across large portions of upstate New York due to elevated levels of fine ...

The U.S. Air Quality Index (AQI) is the Environmental Protection Agency’s tool for reporting outdoor air quality and health. The AQI includes six color-coded categories, each corresponding to a range ...

Plumes of smoke from the Canadian wildfires are hovering over portions of Michigan. Reading the EPA's Air Quality Index can help you plan your daily activity to ensure it's manageable for your health.

Wildfires in Canada are sending heavy smoke across the northern U.S., and New Jersey is experiencing some unhealthy air pollution. AQI, or Air Quality Index, is the measure of how healthy or unhealthy ...

Smoke from wildfires burning in Canada, North Dakota and Minnesota is expected to hit the Chicago area Friday, but what will that mean for the region's air quality? The wildfire smoke is expected to ...