Department of Environmental Conservation

D E C banner

Air Quality Index (AQI) Forecast and Current Observations for New York State

Sign up for DEC Delivers

Enter email address:



Air Quality Forecast

The Air Quality Index (AQI) is a scale used for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. It was created as an easy way to correlate levels of different pollutants to one scale; the higher the AQI value, the greater the health concern. When levels of ozone and/or fine particles are expected to exceed an AQI value of 100, an Air Quality Health Advisory is issued alerting sensitive groups to take necessary precautions.

The Air Quality Forecast displays the predicted maximum AQI value for eight Air Quality Health Advisory regions in New York State. It also displays the observed maximum values for the previous day. Our Air Quality Health Advisory regions consist of the following:

map of air quality index regions with legend
  • Region I Long Island - Nassau and Suffolk
  • Region II New York City Metro - New York City, Rockland, and Westchester
  • Region III Lower Hudson - Dutchess, Orange, Putnam, Ulster, and Sullivan
  • Region IV Upper Hudson - Albany, Columbia, Fulton, Greene, Montgomery, Rensselaer, Saratoga, Schenectady, Schoharie, and Washington
  • Region V Adirondacks - Clinton, Essex, Franklin, Hamilton, northern Herkimer, Lewis, St. Lawrence, and Warren
  • Region VI Eastern Lake Ontario - northern Cayuga, Jefferson, Monroe, Oswego, and Wayne
  • Region VII Central - Allegany, Broome, southern Cayuga, Chemung, Chenango, Cortland, Delaware, southern Herkimer, Livingston, Madison, Onondaga, Oneida, Ontario, Otsego, Tioga, Tompkins, Schuyler, Seneca, Steuben, and Yates
  • Region VIII Western New York - Cattaraugus, Chautauqua, Erie, Genesee, Niagara, Orleans, and Wyoming

Air Quality Monitoring

Screengrab of Air Monitoring Sites webpage

Air quality measurements from our statewide continuous monitoring network are updated hourly where available. Pollutants monitored include ozone, fine particulate, carbon monoxide, sulfur dioxide, nitrogen oxides, methane/non-methane hydrocarbons, and meteorological data. Preliminary data can be queried for may sites within the network by using the left-hand column and clicking "Reports" and "Multi Station Report".

Preliminary data warning: Data displayed on these pages are preliminary and subject to change. The time displayed is Eastern Standard Time. For validated data, contact the Bureau of Air Quality Surveillance at (518) 402-8508, or go to the EPA's Air Data webpage (leaves DEC website).


  • PDF Help
  • For help with PDFs on this page, please call 518-402-8508.
  • Contact for this Page
  • NYSDEC
    Bureau of Air Quality Surveillance
    625 Broadway
    Albany, NY 12233-3256
    518-402-8508
    Send us an email
  • This Page Covers
  • Page applies to all NYS regions