Knowing how to read the EPA's Air Quality Index can help you understand whether smoke from numerous Canadian wildfires makes it hazardous to breathe outside air. "The AQI is an index for reporting ...

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 ...

A gray haze from wildfire smoke could be seen in Cincinnati, and the entire state of Minnesota is under an air quality alert.

The colors are used on air quality forecast maps. Wildfires are a common cause of extended periods of unhealthy air. In 2020, smoke from wildfires pushed the index above 400 around Portland, ...

The alert will remain go into effect starting at midnight on Saturday, June 21, through Monday, June 23, for counties in Ohio ...

In a world of increasing wildfires and invisible irritants, we consulted with experts to explain why and how to measure air quality in your home and take steps to correct it. By Terri Williams ...

The Air Quality Index monitor near Negaunee, in Marquette County, was at 86 Friday, May 30, ... It features six color-coded categories, from good (0-50) to hazardous (301 plus).