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High Ozone Values During 2018

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.

Eight Hour Ozone Averages Greater than 0.070 ppm for NYC Metro Area during 2018
Station County NY State ID 4th Max 2 - May 24-May 25-May 26-May 29-May 17-Jun Jun-18
Babylon Suffolk 5150-02 0.067 0.069 0.067 0.063 0.064 0.046 0.069 0.052
Holtsville Suffolk 5151-10 0.062 0.070 0.063 0.062 0.059 0.051 0.068 0.048
Riverhead Suffolk 5155-01 0.068 0.072 0.062 0.068 0.075 0.061 0.068 0.058
CCNY New York 7093-25 0.066 0.066 0.062 0.061 0.062 0.068 0.071 0.078
Pfizer Lab Bronx 7094-10 0.065 0.067 0.063 0.065 0.064 0.064 0.073 0.070
IS 52 Bronx 7094-07 0.065 0.066 0.062 0.063 0.065 0.060 0.070 0.071
Queens College 2 Queens 7096-15 0.068 0.071 0.068 0.073 0.067 0.054 0.070 0.054
Fresh Kills West Richmond 7097-01 0.067 0.065 0.061 0.064 0.057 0.074 0.067 0.078
White Plains Westchester 5902-04 0.071 0.072 0.062 0.070 0.065 0.074 0.072 0.080
Rockland County Rockland 4353-02 0.066 0.072 0.056 0.066 0.064 0.058 0.059 0.069

Eight Hour Ozone Averages Greater than 0.070 ppm for Upstate NY during 2018
Station County NY State ID 4th Max 2 - May 24-May 25-May 26-May 29-May 17-Jun Jun-18
Valley Central Orange 3527-01 0.061 0.067 0.050 0.061 0.061 0.050 0.049 0.055
Millbrook Dutchess 1328-01 0.064 0.073 0.051 0.066 0.062 0.052 0.062 0.064
Mt. Ninham Putnam 3951-01 0.064 0.074 N/A N/A N/A N/A N/A N/A
Loudonville Albany 0101-33 0.062 0.064 0.048 0.067 0.071 0.045 0.058 0.052
Stillwater Saratoga 4567-01 0.067 0.068 0.066 0.076 0.067 0.053 0.053 0.058
Whiteface Summit Essex 1567-03 0.066 0.066 0.066 0.073 0.070 0.058 0.060 0.059
Whiteface Base Essex 1567-04 0.066 0.066 0.066 0.070 0.064 0.048 0.060 0.059
Piseco Lake Hamilton 2050-01 0.063 0.066 0.051 0.069 0.067 0.050 0.046 0.049
Perch River Jefferson 2223-01 0.065 0.068 0.060 0.072 0.065 0.049 0.064 0.059
Nicks Lake Herkimer 2167-03 0.064 0.065 0.052 0.068 0.066 0.047 0.051 0.039
East Syracuse Onondaga 3353-09 0.066 0.066 0.058 0.073 0.075 0.052 0.066 0.055
Fulton Oswego 3754-01 0.063 0.063 0.054 0.069 0.074 0.043 N/A 0.042
Rochester 2 Monroe 2701-22 0.065 0.066 0.066 0.071 0.073 0.041 0.065 0.048
Williamson Wayne 5863-01 0.063 0.063 0.062 0.071 0.073 0.047 0.060 0.055
Pinnacle Steuben 5001-04 0.063 0.060 0.060 0.066 0.063 0.051 0.059 0.048
Amherst Erie 1451-03 0.069 0.065 0.069 0.074 0.073 0.042 0.065 0.051
Middleport Niagara 3120-02 0.068 0.064 0.067 0.069 0.069 0.041 0.062 0.047
Dunkirk Chautauqua 0601-04 0.071 0.066 0.072 0.078 0.071 0.062 0.066 0.073

This table 2018 High Ozone Values (PDF, 41 KB), is provided for your convenience.

*Note: Mt. Ninham is not reporting data due to a power outage caused by storm damage early May 2018.

Previous years:

2017 High Ozone Values (PDF, 71 KB),

2016 High Ozone Values (PDF, 18 KB)

2015 High Ozone Values (PDF, 31 KB)

2014 High Ozone Values (PDF, 14 KB)

2013 High Ozone Values (PDF, 18 KB)

2012 High Ozone Values (PDF, 82 KB)

2011 High Ozone Values (PDF, 120 KB)

2010 High Ozone Values (PDF, 24 KB)

2009 High Ozone Values (PDF, 19 KB)

2008 High Ozone Values (PDF, 38 KB)

2007 High Ozone Values (PDF, 37 KB)

2006 High Ozone Values (PDF, 26 KB)

2005 High Ozone Values (PDF, 29 KB)

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 2014 Ambient Air Quality Report (PDF, 450 KB)