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2011 Region 1 Air Quality Data

Map of Region 1 Air Monitoring Stations
Region 1 Air Monitoring Stations
Site No Station County Address Parameters
2950-10 Eisenhower Park Nassau 740 Merrick Ave SO2, PM2.5
5150-02 Babylon Suffolk 72 Gazza Blvd O3, PM2.5
5151-10 Holtsville Suffolk 7 Division St O3, SO2, PM2.5
5155-01 Riverhead Suffolk 39 Sound Ave O3

Sulfur Dioxide - Continuous Pulsed Fluorescence

Annual Averages 2001 through 2011
Annual Arithmetic Mean (PPB) - Primary Standard
(12 month average not to exceed 30 PPB *)
Station Site No. 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
Eisenhower Park 2950-10 5.13 3.92 4.54 4.29 4.16 3.86 3.73 4.72 3.45 2.09 1.97
Holtsville 5151-10 6.08 5.62 5.84 7.04 7.26 3.74 4.54 4.82 3.81 3.95 2.22

Holtsville site (5151-10) was operated by Suffolk County Health Dept until 9/30/10, when NYSDEC commenced monitoring.

Comparison Between NYS Ambient Air Quality and Ambient Air Quality Standards for Calendar Year 2011
Station Site No. One Hour Averages
average of 99th percentile for last 3 years not to exceed 75 PPB *
3-Hour Block Averages
Maximum not to exceed 500 PPB more than once per calendar year *
24 Hour Average
Maximum not to exceed 140 PPB more than once per calendar year *
Observations 99th Percentile, PPB Obs. Highest Values,
PPB
Obs. Highest Values, PPB
Midnight - Midnight
Total
Obs.
%
Avail
2011 2010 2009 3-yr avg Total 1st 2nd Total 1st 2nd
Eisenhower Park 2950-10 8,696 99 27.6 18.0 41.0 29 2,878 39.3
[02/07,
08]
36.5
[02/16,
08]
364 13.7
[02/07]
13.2
[01/25]
Holtsville 5151-10 8,314 95 21.3 17.2 39.0 26 2,733 22.0
[02/11,
08]
21.3
[01/22,
17]
348 10.2
[02/04]

10.0
[02/11]

Footnotes for Region 1 sulfur dioxide data:

(Annual Means in parentheses are based on less than 75% available data)
*New York and Federal Ambient Air Quality Standard
[Date of Occurrence, Hour]
+ Denotes a contravention of NYS/Federal AAQS

Inhalable Particulates (PM2.5) - Rupprecht & Patashnick Sampler

Comparison Between NYS Ambient Air Quality and Ambient Air Quality Standards for Calendar Year 2011 (Average of last 3 years' annual means not to exceed 15 µg/m3 * ; And average of 98th percentile for last 3 years not to exceed 35 µg/m3 *, changed from 65 µg/m3 on 12/17/06)
Station Site
No.
Total
Obs.
Maximum Values 98th Percentile Quarterly Averages, 2011 Annual Mean
1st 2nd 3rd 2011 2010 2009 3-yr
avg
1st 2nd 3rd 4th 2011 2010 2009 3-yr
avg
Eisenhower Park(T) 2950-10 332 38.4
[06/09]
36.7
[07/22]
33.4
[06/08]
29.5 26.4 26.7 28 12.1 9.6 10.9 10.9 10.9 9.5 9.7 10.0
Hempstead (F) 2950-18 113 28.7
[06/08]
23.4
[06/23]
23.1
[01/30]
23.1 20.2 25.8 23 9.0 8.7 10.4 7.6 8.9 8.7 9.0 8.9
Babylon (F) 5150-01 115 25.7
[06/08]
23.6
[08/07]
21.7
[07/23]
21.7 26.1 21.6 23 8.1 8.4 10.8 7.9 8.8 8.5 8.1 8.5
Holtsville (T) 5150-10 330 32.6
[07/22]
31.8
[07/04]
24.8
[01/01]
21.2 (25.6) -- -- 10.6 7.2 7.9 8.1 8.5 (9.2) -- --

Footnotes for Region 1 PM2.5 data:

(Annual Means in parentheses are based on less than 75% available data)
F = Federal Reference Method
T = TEOM (Tapered Element Oscillating Microbalance) not for Standards determination
* Federal Ambient Air Quality Standard
+ Denotes a contravention of Federal AAQS

Ozone - Continuous UV Light Absorption

Annual Averages 2001 through 2011
Annual Arithmetic Mean (PPM)
Station Site No. 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
Babylon 5150-02 .023 .024 .025 .024 .024 .024 .026 .026 .027 .029 .029
Holtsville 5151-10 -- -- -- -- -- .030 .032 .031 .028 .032 .028
Riverhead 5155-01 .030 .033 .030 (.029) .035 .039 .034 .034 .035 .035 .035
Comparison Between NYS Ambient Air Quality and Ambient Air Quality Standards for Calendar Year 2011
Station One Hour Averages 4th Highest Daily Maximum 8-Hour Average-
Not to exceed an avg of 0.075 PPM during the last 3 years,
changed from 0.08 PPM on 5/27/08*
Observations Highest Values, PPM
Site No. Total Obs. %
Avail
>.12 PPM 1st 2nd 3rd 4th 2009 2010 2011 Avg
Babylon 5150-02 8,521 97 1 .137 +
[07/22, 13]
.123
[06/09, 12]
.121
[07/07, 15]
.113
[07/16,
14]
.079
[08/10]
.085
[07/04]
.089
[06/08]
.084 +
Holtsville
(Operated 03/11-12/31)
5151-10 6,761 95 0 .118
[07/22, 13]
.103
[06/09, 14]
.102
[07/07, 14]
.102
[07/16,
15]
.074
[04/26]
.080
[06/04]
.082
[07/16]
.078 +
Riverhead
(Operated 03/11-11/06)
5155-01 5,516 95 0 .100
[06/08, 15]
.100
[07/11, 12]
.096
[07/22, 14]
.091
[06/07,
15]
.071
[09/05]
.075
[06/05]
.080
[07/07]
.075

Due to EPA Waiver for SLAMS (Non-NAMS), % Availability may be based on operational year of less than 12 months (Holtsville, Riverhead)

Footnotes for Region 1 ozone data:

(Annual Means in parentheses are based on less than 75% available data)
*Federal Ambient Air Quality Standard
[Date of Occurrence, Hour]
+ Denotes a contravention of Federal AAQS

Nitrogen Dioxide - Continuous Chemiluminescence

Annual Averages 2001 through 2011 Annual Arithmetic Mean (PPB) - Primary Standard (12 month average not to exceed 53 PPB *)
Station Site No. 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
Eisenhower
Park
2950-10 24.34 22.44 20.99 (19.48) 19.56 18.34 18.28 17.30 15.56 14.57 xxx
Holtsville 5151-10 17.28 17.13 14.37 12.52 13.41 13.13 10.45 10.53 9.82 8.78 xxx

Sampling at 5151-10 was conducted by Suffolk County Health Dept.
Sampling at 2950-10 and 5151-10 was terminated on 12/31/2010

Comparison Between NYS Ambient Air Quality and Ambient Air Quality Standards for Calendar Year 2011
Station Site No. One-Hour Averages - average of 98th
percentile for last 3 years not to exceed 100 PPB *
Observations 98th Percentile, Highest Values, PPB
Total %Avail 2009 2010 2011 3-yr avg 1st 2nd 3rd
Eisenhower
Park
2950-10 xxx xx 58.0 57.0 xxx xx xxx xxx xxx

Footnotes for Region 1 nitrogen dioxide data:

(Annual Means in parentheses are based on less than 75% available data)
*New York and Federal Ambient Air Quality Standard
+ Denotes a contravention of NYS/Federal AAQS