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High Ozone Values During 2013

8-Hour Averages

Values below are maximum daily 8-hour ozone concentrations measured in parts per million (ppm), exceeding the value of the revised National Ambient Air Quality Standard (0.075 ppm). The column labeled 4th Max indicates the 4th highest 8-hour average for all days to date, not just the "high" days listed; bold values are those exceeding 0.075 ppm.

Note: compliance with the air quality standard is based on the average of this 4th highest value during the last three years. Therefore, these highlighted values are not, in and of themselves, a violation of the air quality standard, but rather an indication of elevated values. Only after three years of data with the resulting 4th maximum value can a determination of an NAAQS violation be made.

Eight hour Ozone averages greater than 0.075 ppm for NYC Metro Area during 2013
Station County NY State ID 4th Max 30 May 31 May 24 Jun 25 Jun 17 Jul 18 Jul 19 Jul 21 Aug 11 Sep
Babylon Suffolk 5150-02 0.072 0.083
Holtsville Suffolk 5151-10 0.074 0.076 0.089
Riverhead Suffolk 5155-01 0.078 0.083 0.076 0.078 0.086 0.084 0.076
CCNY New York 7093-25 0.062
Pfizer Lab Bronx 7094-10 0.068 0.076
IS 52 Bronx 7094-07 0.071
Queens College 2 Queens 7096-15 0.071 0.079 0.080
Susan Wagner Richmond 7097-01 0.071 0.086
White Plains Westchester 5902-04 0.072 0.079 0.082
Eight hour Ozone averages greater than 0.075 ppm for Upstate during 2013
Station County NY State ID 4th Max 10 Sep 11 Sep
Rockland County Rockland 4353-02 0.069 0.084
Valley Central Orange 3527-01 0.055
Millbrook Dutchess 1328-01 0.065
Mt. Ninham Putnam 3951-01 0.067
Loudonville Albany 0101-33 0.064
Stillwater Saratoga 4567-01 0.062
Whiteface Summit Essex 1567-03 0.065
Whiteface Base Essex 1567-04 0.063
Piseco Lake Hamilton 2050-01 0.063
Perch River Jefferson 2223-01 0.066
Nicks Lake Herkimer 2167-03 0.061
East Syracuse Onondaga 3353-09 0.065
Fulton Oswego 3754-01 0.063
Rochester 2 Monroe 2701-22 0.064
Williamson Wayne 5863-01 0.066
Pinnacle Steuben 5001-04 0.061
Amherst Erie 1451-03 0.071 0.078
Middleport Niagara 3120-02 0.065
Dunkirk Chautauqua 0601-04 0.066 0.077

This table, 2013 High Ozone Values (PDF) (18 KB), is provided for your convenience.

Previous years:

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 2012 Ambient Air Quality Report (PDF) (316 KB)