NYC 9/11 Public Portal Document
NITRIC OXIDE & NITROGEN DIOXIDE - Continuous Chemiluminescence
NYSDEC Region 2
Metropolitan Air Quality Control Region Annual Averages 1989 through 1999
Nitric Oxide - Annual AriSunetic Mean (ppm)
Station Site No. 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
Mabel Dean 7093-05 .042 .043 .039 (-052) XXX XXX XXX (.036) .038 .031 .033
PS 59 7093-10 .065 .070 .069 (.080) .060 .070 .059 .052 .047 .045 .046
Greenpoint 7095-01 (.053) .033 .035 (.032) XXX XXX XXX
Nitrogen Dioxide - Annual Arithmetic Mean (ppm) - Primary Standard (12 month average not to exceed 0.05 PPM *)
Station Site No. 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
Mabel Dean 7093-05 .042 .042 .041 (.034) XXX XXX XXX (-035) .035 .036 .037
PS 59 7093-10 .049 .046 .047 (.038) .043 .046 .042 .042 .040 .040 .041
Greenpoint 7095-01N (.035) .036 .033 (.035) XXX XXX XXX
Comparison Between N YS Ambient Air Quality and Ambient Air Quality Standards for Calendar Year 1999 52
Nitric Oxide One-Hour Averages Nitrogen Dioxide One-Hour Averages
Observations Highest Values, PPM Observations Highest Values, PPM
I Total %
2 nd 3rd
%
3rd
Station Site No. Avail 1“ Total Avail 1“
Mabel Dean 7093-05 7,785 89 .472 .445 .424 7,799 89 .117 .109 .106
[12/09, [02/16, [02/16, [02/16, [02/16, [02/16,
10] -10] 11] 12] 11] 13]
PS 59 7093-10 8,49.9 97 .533 .507 .487 8,499 97 .135 .126 .118
[02/16, [02/16, [12/09, [02/16, [02/16, [02/16,
10] 11] 09] 12] 11] 13]
(Anniml Means in parentheses are based on less than 75% available data) N=NAMS (National Air Monitoring Station) [Date of Occurrence, Hour]
•New York and Federal Ambient Air Quality Standard + Denotes a contravention of NYS/Federal AAQS
NYC-WTC_000186103
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