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High Ozone Values During 2019

8-Hour Averages

Values (in bold) below are maximum daily 8-hour ozone concentrations, measured in parts per million (ppm), exceeding the 2015 federal standard of 0.070 ppm.

Note: The column labeled 4th Max indicates the 4th highest 8-hour average for all days to date, not just the "high" days listed. Data displayed on this page and within the attached documentation are preliminary and subject to change. For validated data, contact the Bureau of Air Quality Surveillance at (518) 402-8508.

Eight Hour Ozone Averages Greater than 0.070 ppm for NYC Metro Area during 2019
Station County NY State ID 4th Max*
Babylon Suffolk 5150-02 0.055
Holtsville Suffolk 5151-10 0.054
Riverhead Suffolk 5155-01 0.056
Flax Pond Suffolk 5151-12 0.053
CCNY New York 7093-25 0.053
Pfizer Lab Bronx 7094-10 0.053
IS 52 Bronx 7094-07 0.054
Queens College 2 Queens 7096-15 0.055
Fresh Kills West Richmond 7097-01 0.055
White Plains Westchester 5902-04 0.055
Rockland County Rockland 4353-02 0.055

Eight Hour Ozone Averages Greater than 0.070 ppm for Upstate NY during 2019
Station County NY State ID 4th Max*
Valley Central Orange 3527-01 0.054
Millbrook Dutchess 1328-01 0.056
Mt. Ninham Putnam 3951-01 0.055
Loudonville Albany 0101-33 0.053
Stillwater Saratoga 4567-01 0.053
Whiteface Summit Essex 1567-03 0.057
Whiteface Base Essex 1567-04 0.056
Piseco Lake Hamilton 2050-01 0.053
Perch River Jefferson 2223-01 0.052
Nicks Lake Herkimer 2167-03 0.044
East Syracuse Onondaga 3353-09 0.058
Fulton Oswego 3754-01 0.053
Rochester 2 Monroe 2701-22 0.051
Williamson Wayne 5863-01 0.056
Pinnacle Steuben 5001-04 0.054
Amherst Erie 1451-03 0.056
Middleport Niagara 3120-02 0.055
Dunkirk Chautauqua 0601-04 0.059

*As of 6/24/2019, no ozone exceedance events have been recorded in NYS for the Summer 2019 Ozone Season. The 4th max values above are provided for informational use, and will change as the season progresses.

This table is provided for your convenience. 2019 High Ozone Values (PDF)

Previous years:

2018 High Ozone Values (PDF),

2017 High Ozone Values (PDF),

2016 High Ozone Values (PDF)

For information about other monitored air pollutants and a comparison of monitored results to the appropriate NAAQS, you are encouraged to visit the data pages of our most recent Ambient Air Quality Report.