Another air quality alert has been issued for the NYC area today, and it has expanded to include Long Island and New Jersey.

Air quality alerts and advisories have been issued in multiple states as Canadian wildfire smoke continues to spread.

Elevated ground level ozone layers will cause the air quality index in Connecticut to be "unhealthy for sensitive groups" ...

Milwaukee has the 2nd worst air quality in the U.S. on June 5, per NYT. An air quality advisory across the state has also ...

The Illinois EPA encouraged residents to avoid filling up cars with gas until after sunset, and grouping errands to minimize the number of trips taken. Carpooling and use of public transit are also ...