Canadian wildfire smoke is affecting air quality in parts of Michigan. The EPA's air quality index (AQI) uses a color-coded scale to inform the public about air quality and associated health risks.

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 ...

New York state health officials have issued an Air Quality Health Advisory for NYC on Thursday due to the forecast presence of wildfire smoke from Canada. Any impacts are expected to be low, with the ...

Air quality varies based on the type of pollutants in the cycle and can have dramatic ramifications for those breathing ...