Columbus' air quality is once again expected to become unhealthy for sensitive groups on June 12 due to smoke and ozone production, according to the Mid-Ohio Regional Planning Commission.

The AQHI, or Air Quality Health Index, indicates the level of pollution in a community. A rating of 1-3 is low risk, 4-6 is moderate risk, 7-10 is high risk and over 10 is very high risk.

Air quality alerts remain in effect June 6 for Southeast Michigan An air quality map shows conditions improving across the United States on Friday as smoke from the Canadian wildfires subsides ...

An air quality alert remained in effect for the entire Chicago area Friday, with another "Air Pollution Action Day" alert declared as wildfire smoke from Canadian wildfires continues to impact ...

The New York State Department of Environmental Conservation has issued an Air Quality Health Advisory for fine particulate matter through midnight tonight. The advisory covers the following ...

HAMPTON, N.H. — As temperatures in New Hampshire topped 90 degrees and air quality alerts were issued Thursday, people hit the beach in Hampton. Smoke from Canadian wildfires combined with ...

Actually, Chicago’s air quality was among the worst in the world after the Canadian wildfire smoke drifted south to create unsafe conditions for seniors, young children and people with ...

Smoke remains a concern through midday Friday. Residents are advised to stay indoors, use air purifiers to maintain indoor air quality, and wear N95 masks if you have underlying health or ...

Chicagoland woke up to code red unhealthy air quality Thursday as wildfire smoke from Canada continues to plague the Upper Midwest and Great Lakes region. For a time early in the day, it had the ...

The Iowa Department of Natural Resources warned that air quality in a band from the state’s southwest corner to the northeast could fall into the unhealthy category through 6 a.m. Thursday.

A "Code Orange" Air Quality Alert is in effect for Cumberland, Dauphin, Lebanon, Lancaster, and York counties today as Canadian wildfire smoke continues to linger.

An air quality advisory also was called for all of east-central, south-central and southeast Wisconsin. Current conditions at O’Hare International Airport are light rain, fog and drizzle at 66 ...