Add Yahoo as a preferred source to see more of our stories on Google. The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) But many ...

PHILADELPHIA (WPVI) -- With smoke blowing into the Philadelphia region from the wildfires in Canada, you may have heard a lot about the Air Quality Index or AQI. But what it is, exactly? The Air ...

WASHINGTON (DC News Now) — The Air Quality Index is used for reporting on the daily air conditions, how clean or polluted the air is, and how it will affect you and your outdoor activities. The ...

Many of us have been affected by the smoky conditions, whether itchy eyes or a sore throat. This has caused multiple counties to be placed on an air quality alert. This index can be confusing to ...

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