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; ...

Air quality is unhealthier-than-average for some people Thursday as winds are blowing wildfire smoke across the Northern ...

"The AQI is an index for reporting daily air quality. It tells how clean or polluted the air is, and what associated health effects might be a concern, especially for ground-level ozone and ...

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 Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health risks. Michigan residents can check the AQI through various online ...

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 ...

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.

As of 9 a.m. on Friday, June 6, here are the air quality index readings, according to AirNow's Air Quality Index: Ann Arbor: PM2.5 of 135; unhealthy for sensitive groups.

What does PM2.5 mean on the air quality index? This unit is used to measure the fine particulate matter in the air, such as, smoke, dust, soot or dirt. The "2.5" figure means particles are 2.5 ...

Air quality levels are expected to exceed an Air Quality Index (AQI) value of 100, indicating that air pollution levels may pose a health concern, especially for sensitive groups.

Air quality levels are forecast to exceed an Air Quality Index (AQI) value of 100, indicating unhealthy conditions for sensitive groups. These include young children, older adults, and people with ...