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2015 Region 1 Air Quality Data

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

Sulfur Dioxide - Continuous Pulsed Fluorescence

Annual Averages 2005 through 2015
Annual Arithmetic Mean (ppb) - Primary Standard
(12 month average not to exceed 30 ppb*)
Station Site No. 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Eisenhower Park 2950-10 4.16 3.86 3.73 4.72 3.45 2.09 1.97 (1.15) (1.12) 1.35 1.03
Holtsville 5151-10 7.26 3.74 4.54 4.82 3.81 3.95 2.22 (1.03) (1.20) 0.84 0.77

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 2015
Station Site No. One Hour Averages
average of 99th percentile for last 3 years not to exceed 75 ppb*
Observations 99th Percentile, ppb
Total
Obs.
%
Avail
2015 2014 2013 3-yr avg
Eisenhower Park 2950-10 8,618 98 6.0 9.6 6.0 7.2
Holtsville 5151-10 8,315 95 7.1 10.2 9.0 8.8

Footnotes for Region 1 sulfur dioxide data:

(Values in parentheses indicate less than 75% available data for all 4 quarters)
* The rule for revised federal standards was signed in June, 2010, providing a primary 1-hr standard of 75 ppb, and a secondary 3-hr standard of 0.5 ppm. However, the 1971 standards remain in effect until one year after an area is designated for the 2010 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 2015
(Average of last 3 years' annual means not to exceed 12 µg/m3 *;
and average of 98th percentile for last 3 years not to exceed 35 µg/m3*)
Station Site
No.
Total
Obs.
Maximum Values, µg/m3 98th Percentile, µg/m3 Quarterly Averages, 2015 Annual Mean, µg/m3
1st 2nd 3rd 2015 2014 2013 3-yr
avg
1st 2nd 3rd 4th 2015 2014 2013 3-yr
avg
Eisenhower Park (T) 2950-10 346 24.9
[12/12]
24.3
[06/11]
23.0
[09/03]
17.8 19.2 23.9 20.3 9.3

6.1

6.7 7.0 7.3 7.4 8.7 7.8
Babylon (F) 5150-02 104 23.3
[09/03]
21.5
[06/11]
21.5
[06/11]
21.5 20.0 21.4 20.9 8.2 6.5 9.1 6.0 7.4 7.5 7.6 7.5
Holtsville (T) 5151-10 331 26.8
[07/05]
25.9
[09/03]
23.2
[07/04]
18.3 18.6 20.3 19.0 9.1 5.5 7.0 6.7 7.7 7.1 8.2 7.7

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

Comparison Between NYS Ambient Air Quality and Ambient Air Quality Standards for Calendar Year 2015
Station 8-Hour Running Average Begin Hour 4th Highest Daily Maximum 8-Hour Average-
Not to exceed an avg of 0.075 ppm during the last 3 years,
changed to 0.070 ppm beginning 1/1/2016*
Observations Highest Values, ppm
Site No. Total Obs. %
Avail
Days
>.075
ppm
1st 2nd 3rd 4th 2013 2014 2015 Avg
Babylon 5150-02 8,633 97 5 .085
[09/17]
.079
[08/15]
.079
[08/16]
.078
[07/20]
.072
[07/11]
.066
[08/27]
.078
[07/20]
.072
Holtsville
5151-10 7,521 78 1 .077
[09/17]
.071
[07/29]
.070
[07/20]
.063
[09/18]
.074
[06/24]
.062
[08/05]
.063
[09/18]
.066
Riverhead
(Operated 03/12-11/14)
5155-01 4,966 97 4 .079
[09/17]
.076
[07/29]
.076
[08/01]
.076
[08/15]
.078
[06/24]
.064
[05/26]
.076
[08/15]
.072

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