Department of Environmental Conservation

D E C banner

High Ozone Values During 2017

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 2017
Station County NY State ID 4th Max 11 - Apr 17- May 18 - May 19 - May
Babylon Suffolk 5150-02 0.059 0.048 0.061 0.075 0.071
Holtsville Suffolk 5151-10 0.055 0.048 0.057 0.071 0.067
Riverhead Suffolk 5155-01 0.060 0.053 0.064 0.082 0.070
CCNY New York 7093-25 0.051 0.037 0.067 0.068 0.058
Pfizer Lab Bronx 7094-10 0.051 0.042 0.067 0.070 0.057
IS 52 Bronx 7094-07 0.050 0.037 0.067 0.069 0.058
Queens College 2 Queens 7096-15 0.054 0.043 0.060 0.080 0.063
Susan Wagner Richmond 7097-01 0.062 0.061 0.081 0.074 0.062
White Plains Westchester 5902-04 0.055 0.051 0.074 0.068 0.055
Rockland County Rockland 4353-02 0.056 0.059 0.070 0.066 0.055

Eight Hour Ozone Averages Greater than 0.070 ppm for Upstate NY during 2017
Station County NY State ID 4th Max 11 - Apr 17 - May 18 - May 19 - May
Valley Central Orange 3527-01 0.056 0.062 0.064 0.056 0.050
Millbrook Dutchess 1328-01 0.061 0.071 0.069 0.061 0.050
Mt. Ninham Putnam 3951-01 0.063 0.070 0.072 0.067 0.057
Loudonville Albany 0101-33 0.059 0.064 0.061 0.057 0.048
Stillwater Saratoga 4567-01 0.060 0.066 0.060 0.056 0.047
Whiteface Summit Essex 1567-03 0.061 0.060 0.064 0.056 0.050
Whiteface Base Essex 1567-04 0.059 0.059 0.065 0.056 0.050
Piseco Lake Hamilton 2050-01 0.059 0.059 0.064 0.057 0.046
Perch River Jefferson 2223-01 0.057 0.050 0.060 0.057 0.036
Nicks Lake Herkimer 2167-03 0.050 N/A 0.063 0.053 0.039
East Syracuse Onondaga 3353-09 0.055 0.053 0.058 0.054 0.035
Fulton Oswego 3754-01 0.056 0.050 0.057 0.052 0.032
Rochester 2 Monroe 2701-22 0.053 0.049 0.056 0.053 0.035
Williamson Wayne 5863-01 0.055 0.051 0.059 0.050 0.031
Pinnacle Steuben 5001-04 0.054 0.048 0.063 0.055 0.044
Amherst Erie 1451-03 0.057 0.048 0.057 0.060 0.034
Middleport Niagara 3120-02 0.053 N/A 0.056 0.059 0.031
Dunkirk Chautauqua 0601-04 0.060 0.050 0.061 0.061 0.038

This table 2017 High Ozone Values (PDF, 16 KB), is provided for your convenience.

Previous years:

2016 High Ozone Values (PDF. 23 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, 44 KB)

2011 High Ozone Values (PDF, 23 KB)

2010 High Ozone Values (PDF, 24 KB)

2009 High Ozone Values (PDF, 28 KB)

2008 High Ozone Values (PDF, 28 KB)

2007 High Ozone Values (PDF, 33 KB)

2006 High Ozone Values (PDF, 22 KB)

2005 High Ozone Values (PDF, 24 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, 506 KB)