Ulster County Air Quality Advisory Resources

The outdoor air quality in Ulster County and across the region has been severely affected by smoke from wildfires burning across the Canadian province of Quebec. We want to keep you informed about the current air quality conditions and provide guidance on how to stay safe and healthy.

 

The U.S. Environmental Protection Agency's air quality index (AQI) measures air pollutants on a scale of 0-500, explained in the graphic below.