Although there was no official alert, air pollution was higher than normal in areas of the tri-state on Sunday.
Relatively light winds and a stagnant air mass led to a build-up of particulate matter. The conditions created very hazy conditions and reached the Unhealthy for Sensitive Groups category for a while Sunday afternoon.
When air quality is low, you should reduce your exposure to outdoor pollutants, especially if you have medical issues. Air quality could once again suffer on Monday, although rain moving in by Tuesday will help clean up the skies.