The Air Quality Index (AQI) uses a color-coded system to inform the public about air quality levels. Fine particulate matter (PM2.5) is a dangerous pollutant that can cause serious health problems.

Air quality alerts remain in effect June 6 for Southeast Michigan 00:54. An air quality map shows conditions improving across the United States on Friday as smoke from the Canadian wildfires ...

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.

Each Air Quality Index category, also known as the level of concern, is attached to a certain range of values: Good (green): 0 to 50; Moderate (yellow): 51 to 100; ...

The national average air quality index in 2023 was 38, according to IQAir, a Swiss air quality technology company. More than 100 nations had cleaner air , on average, than the United States, and ...

The DNR is reporting an Air Quality Index level in the "Unhealthy" category for Milwaukee on June 4. The National Weather Service is urging sensitive groups, such as those with asthma, to limit ...

An air quality alert has been issued for the entire state of Wisconsin. Smoke from Canadian wildfires will produce unhealthy air quality in Wisconsin on May 30.

Air Quality Index map: Track the air quality near you . A real-time, interactive map of air quality from AirNow.gov can be found below: What is PM2.5?

Here's how to interpret the Air Quality Index values, according to the U.S. EPA: Good (0-50): The level of pollution in the air is of little to no risk. Moderate (51-100): For people who are ...

An Air Pollution Action Day was called Wednesday morning for the Chicago area and is in effect until midnight, weather officials said. Officials issued an alert Wednesday as air quality was ...