Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality Index numbers returned to “healthy” or “moderate” levels this week in L.A. County, but they shouldn’t breathe a ...

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.

Those groups particularly sensitive to particulate matter in the air may want to limit time outside Friday and Saturday.

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 ...

When skies are smoky or hazy, there’s a good chance that the air quality has dropped to unhealthy levels. To determine this, we rely on the air quality index (AQI). Watch this video to see what the ...

Northeast Ohio is under an air quality alert due to elevated levels of ozone or particulate matter. The Air Quality Index (AQI) is currently at a level unhealthy for sensitive groups like those with ...

As fires burn across Los Angeles County, spurring thousands of evacuations, drifting smoke is affecting the L.A. area and beyond. Wildfire smoke can be harmful to health, especially for children, the ...

Plumes of smoke from the Canadian wildfires are hovering over portions of Michigan. Reading the EPA's Air Quality Index can help you plan your daily activity to ensure it's manageable for your health.