The EPA's Air Quality Index can tell you whether breathing outside air can be harmful. Here's how to read the scale to plan ...

An Air Quality Alert has been issued for Koochiching County and the northern portion of St. Louis County, in effect until 1 ...

The National Weather Service has issued both a heat and air quality alert for most of downstate New York, Wednesday, July 16.

The DEC has issued an air quality health advisory for most of upstate New York due to elevated levels of fine particulate ...

The Cram fire is the largest in the state, expanding overnight to more than 64,000 acres, according to the Northwest ...

An air quality alert was issued by the National Weather Service in Milwaukee-Sullivan at 9:26 a.m. on Wednesday, July 16.

The Mid-Ohio Regional Planning Commission issued an air quality alert July 15, 2025, for central Ohio, including Columbus, ...

Besides temperatures feeling in the high 90s, Chicago and surrounding areas are under an air quality alert until midnight, ...

Sensitive groups are advised to stay indoors and limit outdoor activities as pollution and ozone levels spike to unhealthy ...

The Illinois EPA declared an Air Pollution Action Day in the Chicago metro area. See today's air quality index forecast for Illinois.

Additional plumes of smoke from Canada's active wildfires prompt officials to issue a statewide air quality alert on July 14.

The alert comes as humidity is expected to increase Tuesday, with high temperatures in the mid 80s to low 90s, with heat indices reaching 100 by Wednesday.