Washington, D.C. NATTS Network Assessment Review
• Established 2004: Carbonyls, PMio Metals, and VOCs
o Chromium VI added in 2005; ended in in 2013
o PAHs added in 2008
• For the NATTS Network Assessment (2004-2018):
o 16 of 18 Method Quality Objective (MQO) Core HAPs were included in the national trends
¦ Beryllium (PMm): Completeness less than 75% for 2018
¦ 1.3-Butadiene: Bias Percent Difference was outside ± 35% for 2017
o 236 of 247 pollutant datasets were suitable for trends analysis
o Annual Average and 3-Year Rolling Average Concentrations were generally flat over time, with the
exception of a few pollutants (1,3-butadiene, lead (PMio), manganese (PMio), naphthalene, nickel (PMio),
and tetrachloroethylene).
o 100% Reporting of Datasets
• Method Quality Objectives (MQO): 2004-2018
o Completeness: Met 85% completeness in 245 of 247 pollutant datasets
o Method Detection Limits: Met MDL Target Ratio of 1.00 in 234 of 256 pollutant datasets
o Bias: Met ±25% for 206 of 217 pollutant datasets
o Overall Method Precision: Met <15% CV for 41 of 81 pollutant datasets
o Analytical Method Precision: Met <15% CV for 32 of 124 pollutant datasets
• Analytical Laboratories for 2018
voc
Carbonyl
PMio Metals
Chromium VI
PAHs
MDE
PAMSL
WVDEP
NA
ERG
• Equipment Year Deployed
Equipment Type
VOC
Carbonyl
PMio Metals
Chromium VI
PAHs
Sampler
2018
2011
2015
2005
2008
Analytical
2008
2003
2011
2001
2015
Preconcentrator
2012
NA
NA
NA
NA
Standards Preparation
2015
NA
NA
NA
NA
Canister Cleaning
2015
NA
NA
NA
NA
Extraction
NA
NA
2017
2011
2004
-------
National Summary: NATTS data were collected at 27 locations across the United States,
with sites beginning in 2003 or later (Figure 1) for 19 core HAPs. Over 528,000 concentrations
(primary, secondary, and replicate) were generated and analyzed for this assessment. Pollutant
datasets were scored to assess whether they were suitable for trends analysis. Each
pollutant dataset was evaluated against four MQOs: Completeness; Sensitivity; Bias; and
Precision. Datasets that were suitable (A- or B-rated) for six consecutive years were used for
national trends analysis (Table 1).
National trends were determined by comparing the most recent 3-year blocked averages
(e.g., 2013-2015 vs. 2016-2018) to determine if the NATTS Trends DQO was being met:
To be able to detect a al5percent difference (trend) between the annual mean
concentrations of successive 3-year periods within acceptable levels of decision error.
Of the 19 core HAPs. 18 were assessed for the NATTS Trends DQO. Due to sampling and
analytical issues, acrolein was not considered for trends analysis (Table 2). This assessment
showed that across the network, 15 of those 18 pollutants were decreasing between the
3-year blocks, while two of those pollutants were increasing between the 3-year blocks.
One pollutant did not exhibit a trend.
Table 1. NATTS Network Assessment: Count and Percentage of Suitable
Datasets by Pollutant Group
Pollutant Group
A-rated
B-rated
Does Not Meet
#
%
#
%
#
%
VOCs
1,452
53%
737
27%
555
20%
Carbonyls
523
67%
193
25%
66
8%
PM10 Metals
1,418
61%
685
30%
213
9%
Chromium VI
159
74%
29
13%
27
13%
PAHs
410
74%
124
22%
18
3%
Total = 6,609
3,962
60%
1,768
27%
879
13%
Table 2. Three-Year Block Averages for National Trends
Pollutant
Units
# Sites
Block 1
Block 2
% Difference
Acetaldehyde
Hg/m3
19
1.51
1.39
-7.7%
Arsenic (PM10)
ng/m
21
0.71
0.68
-3.2%
Benzene
Hg/m3
19
0.65
0.59
-10.2%
Figure 1. NATTS Site and Year Established
Benzo(a)pyrene
ng/m3
21
0.113
0.087
-23.2%
Seattle, ,
Beryllium (PM10)
ng/m3
20
0.012
0.009
-26.4%
Butadiene, 1,3-
Hg/m3
19
0.071
0.063
-10.9%
Portland (#1), OR* Portland (#2), OR _ ^ / \
• > ' \ ; " I I >
Cadmium (PM10)
ng/m3
21
0.170
0.097
-43.0%
* »•* l | - Underbill.Vt
/l_a Grande (#1), OR*-' '"•••JL. • _ _ j ,,l M/ i ' \ f
} /. a V«?i-7S»" I s ') H or icon.' Wit' \ \ "-Roxbury. MA
j... ¦ La Grande (#2), OR i f c-/ . * ] Rochester, NY \ I ...-S
) / ; I | May ville.Wr >f, \~ V
/ i ! I -->.#/ \ Detroit; Ml f
- — — ; I i J \ j X. Providence, Rl
f / Bountiful'UT | X — \ ^f- .Bronx (#1), NY"
\ 1 ™ . \ Chicago, IL ¦ ; _ j \ S
_ X \ ' . 1, , Washington^D.C. "w
SanJoBB.CA j [ ^
, Grand Junction. CO V St Louis MO Grayson Lake. KY J ' Bronit (#2), NV"
\ \ _ ' 1 v. U-.--.'1" . ,-.v * Richmond. -VA
S \ _ : i . \ i i*/ '
. . . \ ' v • - — -1 _ Vs Hazard, KY*--^-""?" / j
Los Angeles, CA \J ; j_ | _ J _ r - "[¦/
- Rubidoux, CA i / £' y-""" /
• X: / >' ' 1 / T \Chesterf ield, SC
NATTS Sites phoenix.AZ / ; —J / 1 j. /
; i Karnack, TX ) South DeKalb, GA y
~ Rural \ j | J , > /
O Urban X \ t ; \ ,r(
NATTS - Year Established Houston, ri ^\
| 2003 "^T.mp,.FL
¦ 2004 \ Pinellas County, FL, 'i
1 "> ./ 'i. 1
¦ 2007 1 >
"ft
¦ 2008
| | 2009
2010
2016
?ni7 * The Hazare|. Mayville, Wl, La Grande <#1), OR, Portland (#1), OR, sites were relocated in 2008, 2009, 2016, and 2017, respectively.
"The Bronx (#1), NY site temporarily moved to the Bronx (#2), NY site from mid-2010 to mid-2012.
Carbon Tetrachloride
Hg/m3
15
0.59
0.56
-4.7%
Chloroform
Hg/m3
20
0.256
0.255
-0.4%
Chromium VI
ng/m
18
0.029
0.026
-7.7%
Formaldehyde
Hg/m3
19
2.77
2.68
-3.3%
Lead (PM10)
ng/m
21
3.08
2.81
-8.9%
Manganese (PM10)
ng/m3
20
8.06
7.93
-1.6%
Naphthalene
ng/m3
20
66.70
51.08
-23.4%
Nickel (PM10)
ng/m3
19
1.28
1.05
-18.0%
T etracliloroethylene
ng/m3
19
0.149
0.174
17.2%
T ricliloroethylene
ng/m3
19
0.020
0.022
10.7%
Vinyl Cliloride
ng/m3
17
0.0051
0.0048
-5.5%
Page 1 of 25
-------
NATTS Monitoring Site Report: Washington, D.C.
Site Information
Figure 2. NATTS Site Location
Region
3
NATTS Site Type
Urban
County
District of Columbia
AQS Site Code
11-001-0043
NATTS Operating Agency
DC Air Pollution District
Latitude
38.921847
Longitude
-77.013178
AQS Land Use
Commercial
AQS Location Setting
Urban/City Center
10-Mile Population
159,515
Pollutant Datasets Evaluation: Suitable for Trends (Y=yes; Y(T)=yes, and used for DQO Trends; N=No;
=not rated
Final Pollutant Name
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
Acetaldehyde
Y
Na
Y
Nb
Nb
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Arsenic (PV1]0)
--
Nb
Na
Y
Y
Nb
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Benzene
Y
Y
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Benzo(a)pyrene
—
—
—
--
—
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Beryllium (PM10)
--
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Nc
Butadiene, 1,3-
Nb
Nb
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Nd
Y
Cadmium (PM10)
~
Y
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Carbon tetrachloride
Y
Y
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Chloroform
Y
Y
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Chromium VI
--
Y
Y
Y(T)
YfT)
YfT)
YfT)
Y(T)
YfT)
--
--
--
--
--
--
Formaldehyde
Y
Na
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Lead (PM,„)
~
Y
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Manganese (PM10)
~
Y
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Naphthalene
~
—
—
~
~
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Nickel (PMI0)
--
Y
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
T etrachloroethylene
Y
Y
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
T richloroethylene
Y
Y
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
Vinyl chloride
Y
Y
Y
Y
Y
Y
Y
Y
Y
YfT)
YfT)
YfT)
YfT)
YfT)
YfT)
a: Pollutant was sampled, but no MDL data were reported to AQS.
b: Reported MDL to NATTS Target Ratio greater than 2.0
c: Completeness was less than 75% based on l-in-6 day sampling.
Bias % Difference was outside ± 35%.
Page 2 of 25
-------
Table 3. NATTS Network Assessment Data (2003-2018) - National Distribution Statistics By Type3
Analyte
Units
Site Type
# Data
Records
%
Detections
Arithmetic
Meanb
Percentile Value0
5th
10th
25th
50th
75th
90th
95th
Acetaldehyde
ng/m3
Urban
15,704
100%
1.77 ± 0.02
0.50
0.66
0.97
1.45
2.19
3.24
4.04
ng/m3
Rural
4,930
100%
1.20 ± 0.04
0.36
0.46
0.65
0.93
1.38
2.02
2.76
ng/m3
All Sites
20,634
100%
1.63 ± 0.02
0.44
0.58
0.86
1.31
2.00
3.02
3.86
Arsenic (PM10)
ng/m3
Urban
14,968
97%
0.89 ± 0.04
0.10
0.19
0.34
0.58
0.99
1.70
2.41
ng/m3
Rural
4,622
96%
0.49 ± 0.02
0.04
0.08
0.17
0.35
0.59
0.94
1.28
ng/m3
All Sites
19,590
97%
0.79 ± 0.03
0.06
0.14
0.29
0.52
0.89
1.54
2.19
Benzene
Hg/m3
Urban
15,984
99%
0.86 ± 0.01
0.25
0.30
0.43
0.66
1.05
1.64
2.21
Hg/m3
Rural
2,494
95%
0.43 ± 0.02
0.04
0.13
0.21
0.33
0.52
0.78
1.01
Hg/m3
All Sites
18,478
99%
0.81 ± 0.01
0.19
0.26
0.39
0.61
0.98
1.55
2.09
Benzo(a)pyrene
ng/m3
Urban
12,336
70%
0.096 ± 0.004
ND
ND
ND
0.04
0.11
0.24
0.37
ng/m3
Rural
3,179
36%
0.067 ± 0.009
ND
ND
ND
ND
0.02
0.13
0.37
ng/m3
All Sites
15,515
63%
0.090 ± 0.004
ND
ND
ND
0.03
0.10
0.23
0.37
Beryllium (PM10)
ng/m3
Urban
15,783
75%
0.051 ± 0.006
ND
ND
0.00003
0.005
0.018
0.050
0.101
ng/m3
Rural
4,687
49%
0.023 ± 0.003
ND
ND
ND
ND
0.005
0.017
0.072
ng/m3
All Sites
20,470
69%
0.045 ± 0.005
ND
ND
ND
0.003
0.012
0.049
0.100
Butadiene, 1,3-
Hg/m3
Urban
15,388
81%
0.092 ± 0.002
ND
ND
0.025
0.058
0.114
0.215
0.302
ng/m3
Rural
2,185
29%
0.012 ± 0.001
ND
ND
ND
ND
0.017
0.046
0.059
ng/m3
All Sites
17,573
75%
0.082 ± 0.002
ND
ND
ND
0.049
0.104
0.199
0.287
Cadmium (PM10)
ng/m3
Urban
16,360
92%
0.21 ± 0.02
ND
0.01
0.05
0.09
0.17
0.42
0.63
ng/m3
Rural
4,684
87%
0.10 ± 0.01
ND
ND
0.03
0.06
0.11
0.20
0.29
ng/m3
All Sites
21,044
91%
0.18 ± 0.01
ND
0.01
0.04
0.08
0.16
0.35
0.56
Carbon Tetrachloride
ng/m3
Urban
14,713
99%
0.569 ± 0.003
0.361
0.433
0.496
0.562
0.651
0.737
0.798
ng/m3
Rural
2,189
92%
0.534 ± 0.016
ND
0.180
0.402
0.537
0.633
0.727
0.798
ng/m3
All Sites
16,902
98%
0.565 ± 0.003
0.304
0.408
0.490
0.559
0.649
0.736
0.798
Chloroform
ng/m3
Urban
16,068
87%
0.265 ± 0.022
ND
ND
0.093
0.132
0.217
0.420
0.668
ng/m3
Rural
3,802
43%
0.052 ± 0.003
ND
ND
ND
ND
0.095
0.144
0.230
ng/m3
All Sites
19,870
79%
0.224 ± 0.018
ND
ND
0.064
0.113
0.196
0.364
0.586
Chromium VI
ng/m3
Urban
8,414
74%
0.036 ± 0.002
ND
ND
ND
0.020
0.042
0.081
0.120
ng/m3
Rural
2,586
41%
0.018 ± 0.004
ND
ND
ND
ND
0.017
0.031
0.051
ng/m3
All Sites
11,000
66%
0.032 ± 0.001
ND
ND
ND
0.016
0.036
0.073
0.114
Page 3 of 25
-------
Table 3. NATTS Network Assessment Data (2003-2018) - National Distribution Statistics By Type3
Analyte
Units
Site Type
# Data
Records
%
Detections
Arithmetic
Meanb
Percentile Value0
5th
10th
25th
50th
75th
90th
95th
Formaldehyde
ng/m3
Urban
16,118
100%
3.11 ± 0.04
0.66
0.99
1.60
2.47
3.84
5.63
7.25
ng/m3
Rural
5,002
100%
2.22 ± 0.05
0.53
0.68
1.06
1.69
2.74
4.19
5.45
ng/m3
All Sites
21,120
100%
2.90 ± 0.04
0.61
0.86
1.43
2.29
3.59
5.38
6.96
Lead (PM10)
ng/m3
Urban
16,366
100%
4.21 ± 0.13
0.72
0.98
1.55
2.64
4.56
8.35
11.90
ng/m3
Rural
4,680
99%
2.10 ± 0.16
0.37
0.50
0.84
1.41
2.37
3.91
5.36
ng/m3
All Sites
21,046
99%
3.74 ± 0.11
0.55
0.80
1.31
2.31
4.04
7.41
10.56
Manganese (PM10)
ng/m3
Urban
16,141
100%
9.80 ± 0.32
1.09
1.51
2.52
4.92
10.21
20.10
30.08
ng/m3
Rural
4,627
99%
3.96 ± 0.14
0.46
0.73
1.36
2.57
4.75
8.54
12.13
ng/m3
All Sites
20,768
100%
8.50 ± 0.25
0.85
1.23
2.15
4.18
8.89
17.98
26.70
Naphthalene
ng/m3
Urban
12,332
100%
74.63 ± 1.14
15.62
21.27
33.55
55.89
94.64
150.05
196.16
ng/m3
Rural
3,301
100%
24.47 ± 1.38
3.74
4.73
7.74
13.86
26.25
50.88
79.17
ng/m3
All Sites
15,633
100%
64.04 ± 1.00
6.58
10.92
23.37
45.59
83.31
137.54
181.75
Nickel (PM10)
ng/m3
Urban
16,125
97%
1.85 ± 0.05
0.25
0.41
0.67
1.11
2.00
3.52
5.27
ng/m3
Rural
4,623
85%
0.65 ± 0.08
ND
ND
0.10
0.28
0.64
1.15
1.89
ng/m3
All Sites
20,748
94%
1.58 ± 0.04
ND
0.15
0.47
0.92
1.73
3.14
4.74
T etrachloroethylene
Hg/m3
Urban
15,612
86%
0.25 ± 0.01
ND
ND
0.06
0.13
0.25
0.48
0.74
Hg/m3
Rural
2,272
36%
0.09 ± 0.04
ND
ND
ND
ND
0.04
0.08
0.16
Hg/m3
All Sites
17,884
79%
0.23 ± 0.01
ND
ND
0.04
0.11
0.22
0.44
0.70
T richloroethylene
Hg/m3
Urban
15,843
41%
0.040 ± 0.002
ND
ND
ND
ND
0.051
0.107
0.164
ng/m3
Rural
3,388
13%
0.021 ± 0.003
ND
ND
ND
ND
ND
0.017
0.250
ng/m3
All Sites
19,231
36%
0.037 ± 0.002
ND
ND
ND
ND
0.041
0.105
0.167
Vinyl Chloride
ng/m3
Urban
14,778
19%
0.0044 ± 0.0003
ND
ND
ND
ND
ND
0.0137
0.0257
ng/m3
Rural
2,444
8%
0.0040 ± 0.0009
ND
ND
ND
ND
ND
ND
0.0156
ng/m3
All Sites
17,222
17%
0.0043 ± 0.0003
ND
ND
ND
ND
ND
0.0126
0.0254
3 Statistics presented are from pollutant datasets which were suitable for trends.
b The arithmetic mean is the average of all samples results which include actual measured values. If no chemical was registered, then a value of zero is
used when calculating the mean.
c ND: No results of this chemical were registered by the laboratory analytical equipment.
Page 4 of 25
-------
Table 4. Summary Statistics for Washington, D.C.
Analyte
Units
# Data
Records
%
Detection
Arithmetic Mean3
Percentile Valueb
5th
10th
25th
50th
75th
90th
95th
Acetaldehyde
l-ig/m3
907
100%
0.90 ± 0.04
0.17
0.41
0.60
0.81
1.08
1.50
1.79
Arsenic (PM10)
ng/m3
884
100%
0.71 ± 0.03
0.20
0.26
0.40
0.62
0.87
1.23
1.53
Benzene
l-ig/m3
891
100%
0.78 ± 0.03
0.32
0.35
0.48
0.66
0.96
1.34
1.58
Benzo(a)pyrene
ng/m3
617
73%
0.06 ± 0.01
ND
ND
ND
0.03
0.08
0.15
0.19
Beryllium (PM10)
ng/m3
838
62%
0.0160 ± 0.0034
ND
ND
ND
0.001
0.0053
0.0487
0.0657
Butadiene, 1,3-
l-ig/m3
891
81%
0.102 ± 0.008
ND
ND
0.023
0.069
0.139
0.230
0.307
Cadmium (PM10)
ng/m3
885
99%
0.155 ± 0.023
0.026
0.042
0.068
0.109
0.172
0.272
0.362
Carbon Tetrachloride
l-ig/m3
891
100%
0.59 ± 0.01
0.44
0.46
0.51
0.58
0.65
0.74
0.79
Chloroform
l-ig/m3
891
99%
0.276 ± 0.014
0.102
0.105
0.153
0.216
0.341
0.497
0.624
Chromium VI
ng/m3
499
58%
0.020 ± 0.012
ND
ND
ND
0.009
0.020
0.032
0.048
Formaldehyde
l-tg/m3
901
100%
4.16 ± 0.27
1.13
1.43
2.08
3.01
4.91
7.24
10.18
Lead (PM10)
ng/m3
885
100%
3.39 ± 0.16
1.01
1.35
1.95
2.86
4.21
5.76
7.23
Manganese (PM10)
ng/m3
885
100%
4.95 ± 0.19
1.58
1.99
2.85
4.31
6.21
8.72
10.67
Naphthalene
ng/m3
618
100%
85.69 ± 5.28
26.55
33.03
44.85
68.34
102.64
159.53
205.95
Nickel (PM10)
ng/m3
885
100%
1.26 ± 0.10
0.33
0.40
0.56
0.88
1.39
2.39
3.32
T etrachloroethylene
l-tg/m3
891
95%
0.320 ± 0.018
0.067
0.071
0.142
0.267
0.405
0.626
0.860
T richloroethylene
l-tg/m3
891
33%
0.027 ± 0.003
ND
ND
ND
ND
0.054
0.058
0.110
Vinyl Chloride
l-ig/m3
891
23%
0.0171 ± 0.0031
ND
ND
ND
ND
ND
0.0508
0.1280
3 :The arithmetic mean is the average of all samples results which included actual measured values. If no chemical was registered, then a value of zero is used.
b ND: No results of this chemical were registered by the laboratory analytical equipment.
Table 5. Analytical Labs Supporting this Site
Pollutant Group
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
VOCs
--
MDE
MDE
MDE
MDE
MDE
MDE
MDE
MDE
MDE
MDE
MDE
MDE
MDE
MDE
MDE
Carbonyls
-
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PAMSL
PM10 Metals
-
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
WVDEP
Chromium VI
-
-
ERG
ERG
ERG
ERG
ERG
ERG
ERG
ERG
ERG
-
-
-
-
-
PAHs
-
-
-
-
-
ERG
ERG
ERG
ERG
ERG
ERG
ERG
ERG
ERG
ERG
ERG
—: Not Applicable
VTDEC: Vermont Department of Environmental Conservation WVDEP: West Virginia Department of Environmental Protection
PAMSL: Philadelphia Air Management Services Laboratory ERG: Eastern Research Group, Inc.
Page 5 of 25
-------
Figure 3. Washington, D.C. Annual Average Concentrations
1.6
a 12
a
.2 08
§
o
U
0.4
0.0
Washington, DC
Annual Averages:
Acetaklehyde
-r
i
i
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
1.0
0.8 -¦
a 0.6 4-
5 0.4
0
u
3 0.2 --
u
0.0
Washington, DC
Annual Averages:
Arsenic (PM10)
L T
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
1.5
1.2
"tot, 0.9
\j3 0.6
03
H
S3
y 0.3
~-H
O
U
0.0
Washington, DC
Annual Averages:
Benzene
h-f
J t
i-
T
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
0.15
0.12
.S
ofc 0.09
5 0.06 --
0
g 0.03 --
o
u
0.00 --
Washington, DC
Annual Averages:
Benzo(a)pvrene
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
Page 6 of 25
-------
0.20
0.16 --
/¦—v
m
.3
^ 0.12
cc
1
u
S
o
U
0.08
0.04 --
0.00 4-
Figure 3. Washington, D.C. Annual Average Concentrations
Washington, DC
Annual Averages:
Beryllium (PM10)
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
0.30
0.24 --
]|0.18 f
a
o
'3 0.12 +-
§
u
S
o
O
0.06
0.00
Washington, DC
Annual Averages:
1,3-Butadiene
o
} X \ T
1 i f
1—
£ 1 J 1
*
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
0.80
0.64
/¦—\
m
J
3b 0.48
•§ 0.32
P
I
a o.i6
a
o
O
0.00
Washington, DC
Annual Averages:
Cadmium (PM10)
<
~
i * i
i
~
i—
I t * # * J
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
1.0
~5tj
s
o
CB
U
3
u
0.6
0.4
0.2
0.0
Washington, DC
Annual Averages:
Carbon Tetrachloride
i * i
* *
~ §
I
i * *
1 1 1 1 ! 1 1 1 1 1 1 1 1 ! 1
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
Page 7 of 25
-------
Figure 3. Washington, D.C. Annual Average Concentrations
0.5
0.4
Washington, DC
Annual Averages:
Chloroform
r—•
Hi
- 0.3
fi °-2
5
Q 0. 1
Q
0.0
I
-f
f-M
:ocn 2005 :oo5 ;oo? 200s iocs jqio ion :oi: aoo ;ot4 2015 20t6 :or 201$
Year
10.0
8.0
cb
=; 6.0
4.0
0
p
5
1 »
W
0.0
Washington, DC
Annual Averages:
Formaldehyde
is
f
i
i *i
rf~f"
1 i ! ! 1 ' 1 1 1 ? 1 1 1 i I
2004 2005 23006 2007 ZOOS 2009 2010 2011 2012 2GB 2014 2015 2016 20 P 20JS
Year
0.250
0.200
3,0.150
¦= 0.100
5
6
U 0.050
1—4
O
U
0.000
Washington, DC
Annual Averages;
Hexavalcnt Chromium
2005 2)006 2007 2008
2009
Year
2010 2011 2012 2013
7.5 Tj
6.0
4.5
o
cs 3.0
u
u
I—I
o
u
1.5
0.0
Washington, DC
Annual Averages:
Lead (PM10)
1
<
~
<
~
<
>
J J I I t , -
- - I i 1 «
1—~-!
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
Page 8 of 25
-------
8.0
6.4
4.8
u
u
O 1.6
U
0.0
Figure 3. Washington, D.C. Annual Average Concentrations
Washington, DC
Annual Averages:
Manganese (PM10)
T 1
' n H
~
¦ T
i o - J
* t
* i
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
200.0
1600
^120.0
W
s
s SO.Q
a
S 40.0
o
U
00
Washington, DC
Annual Averages:
Naphthalene
1 f
4
l~TT
i
2008 2009 2010 SOU 2012 2013 2014 2015 2016 2017 2018
Year
4.0
a
o
U
£3
o
1.6
U 0.8
Washington, DC
Annual Averages:
Nickel (PM10)
O
—i
i—~-
—i
1 i l i '
>
I * # *
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
Washington, DC
Annual Averages:
let ra ch lo ro et hylen e
0.70
0.56
I 0 42
©
| o :s
—
g
g
5 0.14
U
0.00
<
* i
L
o
'}{[
~ T
" ° T
i
t M
I
20CM 2005 2006 2007 200S 2005> 2010 2011 2012 2013 2014 2015 2016 2017 2018
Year
Page 9 of 25
-------
Figure 3. Washington, D.C. Annual Average Concentrations
0.10
o.os
$ 0 .1)5
a
¦5 O.CM
8
~ 0 .02
o
o
0.00
Washington, DC"
Annual Averages:
Trichloroethvlene
<
.. T T t J T
lift*
-r
4
~
I
* j
[Hi J
! 1—*— 1 !
1
20CM 3)05 2006 2007 200® 2009 2010 2011 2012 2013 2014 2015 2016 20r 201S
Year
o
—i
—*
s
y
s
u
0,075
0.060
0.CU5
0.030
0015
0000
Washington, DC
Annual Averages:
Vinyl Chloride
I t i
i
2004 2005 2006 2007 200S 2009 2010 3)11 2012 2013 2014 2015 2016 2017 2018
Year
Does not meet MQO
Page 10 of 25
-------
Figure 4. Washington, D.C. - 3-Year Rolling Average Concentrations
1.25
1.00
Washington, DC
3-Year Rolling Averages:
Acetaldehyde
J 0.75
C3
&
r—i
y 0.5°
o
u
0.25
f
i
*
f4
t
0.00
~i r
~i r
^ ^ S0/o *>,.
-------
Figure 4. Washington, D.C. - 3-Year Rolling Average Concentrations
1.5
1.2
a °-9
_o
¦4—>
cc
£
§ 0.6
r-t
o
U
0.3
Washington D.C.
3-Year Rolling Averages:
Benzene
\
i * f
FT i
*
i
o.o
?0} lOj lo} If); J
¦% %>7 -%0 %ff ¦%>
Years
0.10
Washington D.C.
3-Year Rolling Averages:
Benzo(a)pyrene
0.08
60
c
c
o
0.06
I
c
o
U
0.02
0.00
%
C.
VA
/?
'/?
Years
'/j
V,,
°/«
*0,
*>A
<5;
Page 12 of 25
-------
Figure 4. Washington, D.C. - 3-Year Rolling Average Concentrations
Washington D.C.
3-Year Rolling Averages:
Ben Ilium (PM10)
o.io
0.25
0.20
0.15
03
8 010
u
r-*
o
U
0.05
0.00
Washington, DC
3-Year Rolling Averages:
1,3-Butadiene
<~
{
T T
H
1
} i
* f * i i i
I
f
^ ^ ^ ^ 4,,
-°0? -°09 -0/0 -0// -O/j -O/j -0J
-------
Figure 4. Washington, D.C. - 3-Year Rolling Average Concentrations
Washington D.C.
3-Year Rolling Averages:
Cadmium (PM10)
.o
to
0.5
0.4
0.3
a 0.2
-------
Figure 4. Washington, D.C. - 3-Year Rolling Average Concentrations
at
0.5
0.4
0.3
CO
e
§ 0.2
u
o
U
0.1
0.0
10.0
Washington D.C.
3- Year Rolling Averages:
Chloroform
t f i i M
* * » *
i
I
^ ^ ^ ^ ^ ^
-°06 -Oo? "%> ^/7 ^/(f
Years
Washington D.C.
3-Year Rolling Averages:
Formaldehyde
8.0
"5b
6.0
i
~ i
2.0
0.0
^ ^ ^ ^ \ ^ %JU ^ ^ ^
26 -o0? 2oqs 3oo9 2cjj0 2o/} -V, 2o,3 ^ 2o/s 2o,6 ^o/? 20js
Years
Page 15 of 25
-------
Figure 4. Washington, D.C. - 3-Year Rolling Average Concentrations
Washington D.C.
3-Year Rolling Averages:
Hexavalent Chromium
eft
cc
.b
53
cj
o
U
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
%
cr
i
%
%
Years
-ft
°h
„ °vV, X-JV, "On AV. v-JVi 'On ^--V. jO„ «v
<%0
7/
Years
7^ ^/.T
Page 16 of 25
-------
Figure 4. Washington, D.C. - 3-Year Rolling Average Concentrations
6.4
4.8
"at
cc
£3
S 3.2
/<
J A
150.0
120.0
CO
c
X 90.0
.o
13
§ 60.0
c
o
O
Washington D.C.
3-Year Rolling Averages:
Naphthalene
f
30.0
0.0
?o0g ^°os ^o, 3o/
^// ^/? *°i3
*0.
J0.
''.K
*o.
-¦?o.
Vjr
~^0.
Vff
Years
Page 17 of 25
-------
Figure 4. Washington, D.C. - 3-Year Rolling Average Concentrations
Washington D.C.
3-Year Rolling Averages:
Nickel (PM10)
3.0 -
Years
Washington D.C.
3-Year Rolling Averages:
Tetrachloroethvlene
0.5
0.4
0.3
CC
&
5j 0.2
n
+
o
U
0.1
0.0
20,
^°°9-
lOn
,J'a
^O/n ^°/f "°! J<>%
Years
Page 18 of 25
-------
Figure 4. Washington, D.C. - 3-Year Rolling Average Concentrations
Washington D.C.
3-Year Rolling Averages:
Trichloroethvlene
0.05
0.04
Years
0.060
0.048
^ 0.036
O
-------
Table 6. NATTS Network Assessment: MQO#l - Completeness Percentage at Washington, D.C.
Pollutant Group
Year
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
Carbonyl
Acetaldehyde
98
100
100
100
100
100
100
97
100
100
98
100
98
100
98
Carbonyl
Formaldehyde
89
100
100
100
100
100
100
97
100
100
98
100
98
100
98
Chromium VI
Chromium VI
—
98
97
100
100
98
98
100
98
—
—
—
—
—
—
PAH
Benzo(a)pyrene
—
—
—
"
—
95
95
100
100
98
98
100
95
90
95
PAH
Naphthalene
—
—
—
"
—
95
95
100
100
98
98
100
95
90
97
PM10 Metals
Arsenic (PM10)
-
100
93
95
93
102
102
98
102
102
100
98
95
102
102
PM10 Metals
Beryllium (PM10)
-
100
93
92
93
102
102
98
77
102
100
97
97
102
54
PM10 Metals
Cadmium (PM10)
-
100
93
95
93
102
102
98
102
102
100
98
97
102
102
PM10 Metals
Lead (PM10)
-
100
93
95
93
102
102
98
102
102
100
98
97
102
102
PM10 Metals
Manganese (PM10)
-
100
93
95
93
102
102
98
102
102
100
98
97
102
102
PM10 Metals
Nickel (PM10)
-
100
93
95
93
102
102
98
102
102
100
98
97
102
102
voc
Benzene
97
98
100
98
100
100
93
93
97
100
92
100
97
97
102
voc
Butadiene, 1,3-
97
98
100
98
100
100
93
93
97
100
92
100
97
97
102
voc
Carbon tetrachloride
97
98
100
98
100
100
93
93
97
100
92
100
97
97
102
voc
Chloroform
97
98
100
98
100
100
93
93
97
100
92
100
97
97
102
voc
T etrachloroethylene
97
98
100
98
100
100
93
93
97
100
92
100
97
97
102
voc
T richloroethylene
97
98
100
98
100
100
93
93
97
100
92
100
97
97
102
voc
Vinyl chloride
97
98
100
98
100
100
93
93
97
100
92
100
97
97
102
A-rated: >85%
B-rated: Between 75% to 85%
Does not meet: <75%
No data available
Page 20 of 25
-------
Table 7. NATTS Network Assessment: MQO#2 - Reported Method Detection Limits (MDLs
Pollutant
Group
Pollutant Name
Target
MDL
Units
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
Carbonyl
Acetaldehyde
0.45
pg/m3
0.07
b
0.03
2.41
2.41
0.06
0.05
0.02
0.02
0.002
0.02
0.02
0.04
0.02
0.06
Carbonyl
Formaldehyde
0.98/0.08a
pg/m3
0.04
b
0.02
0.13
0.13
0.03
0.03
0.03
0.01
0.14
0.12
0.31
0.31
0.38
0.60
Chromium VI
Chromium VI
0.08
ng/m"
--
0.22
0.14
0.10
0.09
0.06
0.01
0.05
0.04
0.05
--
--
--
--
--
PAH
Benzo(a)pyrene
0.91
ng/m"
~
--
--
--
0.08
0.09
0.07
0.06
0.09
0.09
0.03
0.13
0.06
0.02
0.01
PAH
Naphthalene
29.00
ng/m"
~
--
--
--
0.016
0.012
0.062
0.006
0.008
0.011
0.013
0.005
0.024
0.060
0.054
PM10 Metals
Arsenic (PM10)
0.23
ng/m"
5.22
6.63
2.30
0.57
0.57
2.57
1.60
1.60
0.92
0.72
0.07
0.85
0.85
0.09
0.09
PM10 Metals
Beryllium (PM10)
0.42
ng/m"
0.81
1.60
0.52
0.10
0.10
0.322
0.322
0.25
0.25
0.34
0.32
0.32
0.32
0.008
0.008
PM10 Metals
Cadmium (PM10)
0.56
ng/m"
0.63
1.05
0.25
0.02
0.02
0.13
0.13
0.23
0.24
0.26
0.12
0.12
0.12
0.369
0.049
PM10 Metals
Lead (PM10)
15.0
ng/m"
0.07
0.07
0.04
0.001
0.001
0.00002
0.00002
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
PM10 Metals
Manganese (PM10)
5.0
ng/m"
0.17
0.32
0.13
0.012
0.012
0.11
0.063
0.02
0.018
0.013
0.013
0.02
0.02
0.06
0.03
PM10 Metals
Nickel (PM10)
2.1
ng/m"
0.67
1.83
0.39
0.03
0.18
0.48
0.19
0.09
0.09
0.10
0.09
0.09
0.09
0.12
0.07
voc
Benzene
0.13
pg/m"
0.25
0.36
0.15
0.41
0.41
0.49
0.25
0.25
0.49
0.49
0.49
0.49
0.27
0.27
0.27
voc
Butadiene, 1,3-
0.10
pg/m"
3.30
3.30
0.33
0.22
0.44
0.44
0.22
0.22
0.22
0.88
0.88
0.71
0.88
1.53
0.77
voc
Carbon tetrachloride
0.17
pg/m"
1.47
1.65
0.59
0.74
0.74
0.74
0.37
0.37
0.74
0.37
1.11
1.11
0.74
1.70
0.78
voc
Chloroform
0.50
pg/m"
0.30
0.28
0.15
0.20
0.20
0.20
0.10
0.20
0.10
0.20
0.39
0.20
0.13
0.13
0.13
voc
Tetrachloroethylene
0.17
pg/m"
0.82
0.65
0.24
0.80
0.80
0.80
0.40
0.40
0.80
0.80
1.20
0.80
0.52
0.52
0.52
voc
T richloroethylene
0.5/0.2a
pg/m"
0.22
0.17
0.11
0.32
0.11
0.21
0.11
0.11
0.11
0.54
0.81
0.81
0.51
0.51
0.51
voc
Vinyl chloride
0.11
pg/m"
0.91
1.00
0.37
0.46
0.70
0.46
0.23
0.46
0.70
0.46
0.46
0.70
0.19
0.19
0.19
at Washington, D.C.
A-rated: MDL to Target MDL ratio < 1
B-rated" MDL to Target MDL ratio between 1 and 2
Does Not Meet MDL to T arget MDL ratio>2
No data available
a: For the 2012 sampling year, the Target MDL for this pollutant was reduced.
b: Pollutant was sampled, but no MDL data were reported to AQS.
Page 21 of 25
-------
Table 8. NATTS Network Assessment: MQO#3 - Bias Percent Difference at Washington, D.C.
Pollutant Group
Pollutant Name
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
Carbonyls
Acetaldehyde
-2.2
4.4
2.7
0.7
17.1
-9.4
1.6
-5.6
a
7.3
-13.9
a
0.4
15.2
-15.7
Carbonyls
Formaldehyde
-3.9
-6.7
-8.2
-13.2
12.0
-6.8
-0.8
-5.8
a
6.3
-0.9
a
-11.5
7.1
5.3
Chromium VI
Chromium VI
--
a
a
a
a
-5.6b
10.5b
a
19.5
-6.5
--
--
--
--
--
PAH
Benzo(a)pyrene
--
--
--
--
a
-1.7
-2.3
-2.1
25.2
-5.7
-16.3
-14.2
-10.5
-22.4
-14.8
PAH
Naphthalene
--
--
--
--
a
-7.7
-17.1
-13.9
21.4
25.5
0.7
-11.4
-9.5
-11.6
-20.7
PM10 Metals
Arsenic (PM10)
7.3e
7.3e
7.3e
7.3e
4.4
23.7
17.6
c
-0.1
-7.1
-0.6
e
-6.0
-2.9
-4.1
PM10 Metals
Beryllium (PM10)
11.2e
11.2e
11.2e
11.2e
0.8
41.6
20.0
c
7.2
-5.2
d
e
-0.2
-12.6
-3.7
PM10 Metals
Cadmium (PM10)
4.9e
4.9e
4.9e
4.9e
4.3
27.7
12.8
c
8.5
-7.6
d
e
-0.5
-1.3
-1.0
PM10 Metals
Lead (PM10)
-3.5e
-3.5e
-3.5e
-3.5e
0.7
181.8
3.5
c
11.4
-4.7
-5.2
e
0.5
-2.1
4.5
PM10 Metals
Manganese (PM10)
0.6e
0.6e
0.6e
0.6e
-29.2
3.7
5.9
c
5.6
-12.6
5.3
e
2.7
-0.8
0.7
PM10 Metals
Nickel (PM10)
4.7e
4.7e
4.7e
4.7e
-2.5
25.7
8.2
c
-7.4
-12.4
e
e
20.8
10.1
5.3
voc
Benzene
2.2
-2.3
-2.4
-3.3
-1.5
6.0
1.1
4.0
a
-1.6
2.6
22.5
31.0
8.2
9.9
voc
Butadiene, 1,3-
-10.3
-5.3
2.6
3.0
8.8
2.3
22.0
6.2
a
-2.0
11.9
-4.3
2.4
-40.9
-4.5
voc
Carbon tetrachloride
-7.6
3.0
-2.2
5.3
6.6
4.6
16.3
-4.9
a
-12.2
4.1
24.5
53.5
15.5
22.1
voc
Chloroform
3.2
-5.8
-5.2
-3.8
-10.1
6.0
-4.1
-14.0
a
-6.2
-1.7
2.5
13.9
16.6
9.5
voc
T etrachloroethylene
-1.0
-6.8
-9.2
-3.2
-1.5
6.8
-1.1
-0.4
a
-29.5
-9.6
-4.4
2.3
9.7
15.1
voc
T richloroethylene
-11.6
-8.7
10.3
2.3
1.1
-3.0
3.7
-9.7
a
-4.5
2.6
-0.6
7.7
4.3
5.8
voc
Vinyl chloride
-12.9
-19.3
-10.6
3.3
-8.5
12.8
5.9
-5.4
a
-11.1
4.7
8.0
12.2
-4.6
4.5
A-rated:±25%
B-rated: Between 25% to 35% or between -25% to -35%
Does not meet:>35% or <35%
No data available
-
a: No Proficiency Test samples were sent for this pollutant and year.
b: Proficiency Test results are from the National Contract Lab for EPA's School Air Toxics Monitoring Program. The %Difference was -5.55% in 2009 and 10.53% in 2010.
c: Pollutant was sampled at this site and year, but no bias data were reported.
d: The Proficiency Test sample for this pollutant was 0; the site reported a concentration as "< MDL", rather than 0. EPA accepted this result.fi applied to these.
e: Although a Proficiency Test sample was sent to the lab supporting this site and year, the results were nullified by EPA due to QA issues.
Page 22 of 25
-------
Table 9. NATTS Network Assessment: MQO#4 - Overall Method Precision %CV at Washington, D.C.
Pollutant Group
Pollutant Name
Overall Method precision % CV
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
Carbonyls
Acetaldehyde
—
—
--
~
--
--
—
--
—
—
—
—
--
—
--
Carbonyls
Formaldehyde
--
--
--
~
--
--
--
--
--
--
--
--
--
--
--
Chromium VI
Chromium VI
—
15.9
10.4
a
16.9
8.0
23.5
10.3
40.1
a
--
—
--
—
--
PAH
Benzo(a)pyrene
—
—
—
—
—
—
--
—
--
—
~
—
--
—
--
PAH
Naphthalene
—
—
—
—
—
—
~
—
--
—
--
—
--
—
--
PM10 Metals
Arsenic (PM10)
—
—
—
--
--
--
—
--
—
—
~
—
~
—
--
PM10 Metals
Beryllium (PM10)
—
—
—
~
~
~
—
—
—
—
~
—
--
—
~
PM10 Metals
Cadmium (PM10)
--
--
--
--
~
~
—
--
—
--
—
—
—
—
~
PM10 Metals
Lead (PM10)
--
~
~
~
--
~
—
--
—
--
—
—
—
—
--
PM10 Metals
Manganese (PM10)
—
—
—
—
~
--
—
—
--
—
--
—
~
—
~
PM10 Metals
Nickel (PM10)
--
--
~
~
~
~
—
~
—
--
—
—
—
—
~
voc
Benzene
0
~
--
9.2
2.8
7.4
10.6
15.2
24.8
25.1
16.6
17.4
12.5
10.2
3.8
voc
Butadiene, 1,3-
~
0
~
16.3
15.1
16.9
32.0
55.1
33.5
40.3
24.6
56.8
29.0
17.7
a
voc
Carbon tetrachloride
~
0
~
3.9
4.7
6.9
7.7
15.8
3.8
12.7
9.2
8.9
9.4
5.6
6.8
voc
Chloroform
--
0
~
5.3
6.6
6.0
13.4
12.3
12.6
15.2
7.3
19.2
16.1
16.8
12.2
voc
T etrachloroethylene
~
0
~
16.0
6.8
5.1
19.4
35.8
25.0
44.2
21.2
35.6
25.0
22.8
14.5
voc
T richloroethylene
~
0
--
0
9.4
0
24.8
47.1
a
a
a
a
a
a
a
voc
Vinyl chloride
~
a
~
a
a
a
24.6
a
a
59.6
a
a
61.2
47.6
a
A-rated:< 15% CV
B-rated: Between 15%CV to25% CV
Does Not Meet: >25% CV or did not report Precision (required in the NATTS Workplan Template since 2012)
No data available
a: Although both primary and secondary data were reported, both sets of values were less than the MDL. Thus no %CV was calculated.
Page 23 of 25
-------
Table 10. NATTS Network Assessment: MQO#4 - Analytical Precision %CV at Washington, D.C.
Pollutant Group
Pollutant Name
Analytical Method precision % CV
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
Carbonyls
Acetaldehyde
--
~
--
--
~
~
~
--
a
a
a
a
a
a
a
Carbonyls
Formaldehyde
—
—
~
~
--
~
—
~
a
a
a
a
a
a
a
Chromium VI
Chromium VI
—
—
b
19.1
0.5
11.6
5.8
8.8
5.8
a
--
—
--
—
--
PAH
Benzo(a)pyrene
—
—
—
—
—
—
--
—
b
2.7
5.8
0.5
0.3
1.2
3.1
PAH
Naphthalene
—
—
—
—
—
—
~
—
0.6
3.1
1.3
1.2
1.0
1.2
1.6
PM10 Metals
Arsenic (PM10)
--
--
--
--
~
--
~
--
a
a
a
0.6
0.9
3.6
9.6
PM10 Metals
Beryllium (PM10)
--
~
~
~
--
~
~
~
a
a
a
b
46.7
60.9
12.2
PM10 Metals
Cadmium (PM10)
--
~
~
~
~
--
~
~
a
a
a
1.7
5.9
1.3
7.9
PM10 Metals
Lead (PM10)
~
--
~
~
~
~
--
~
a
a
a
36.4
36.5
2.7
31.3
PM10 Metals
Manganese (PM10)
~
~
--
~
~
~
~
--
a
a
a
27.1
4.5
4.6
20.0
PM10 Metals
Nickel (PM10)
~
~
~
--
~
~
~
~
a
a
a
17.6
1.8
11.7
43.5
voc
Benzene
~
~
~
~
--
~
~
~
a
a
a
a
a
a
a
voc
Butadiene, 1,3-
--
~
~
~
~
--
~
~
a
a
a
a
a
a
a
voc
Carbon tetrachloride
—
—
~
~
~
~
—
~
a
a
a
a
a
a
a
voc
Chloroform
~
--
--
~
~
~
--
--
a
a
a
a
a
a
a
voc
T etrachloroethylene
—
—
~
--
~
~
—
~
a
a
a
a
a
a
a
voc
T richloroethylene
~
~
~
~
--
~
~
~
a
a
a
a
a
a
a
voc
Vinyl chloride
--
~
~
~
~
--
~
~
a
a
a
a
a
a
a
A-rated:< 15% CV
B-rated: Between 15%CV to25% CV
Does Not Meet: >25% CV or did not report Precision (required in the NATTS Workplan Template since 2012)
No data available
a: Per the NATTS Workplan template, analytical replicates were required to be reported to AQS for this sampling year
b: The primary and/or replicate value were less than the MDL, so no calculation could be made.
Page 24 of 25
-------
Appendix A. Equipment Inventory
Pollutant Type Year(s) Manufacturer/Model, Extraction Type, and Year
Sampling Equipment
Carbonyls
2004-2010
ATEC 8000 Cartridge Sampler (Year Deployed: 2003)
2011-2018
ATEC 8000 Cartridge Sampler (Year Deployed: 2011)
Chormium VI
2005-2013
ERG Chromium VI Sampler (Year Deployed: 2005)
PAHs
2008-2018
Tisch Environmental TE-1000 PUF Sampler (Year Deployed: unknown)
PM10 Metals
2004-2014
General Metal Works Hi-Volume Sampler (Year Deployed: unknown)
2015-2018
EcotechHiVol 3000 (Year Deployed: 2015)
VOCs
2004-2010
RM Environmental Systems 910A Canister Sampler (Year Deployed: unknown)
2011-2015
ATEC 200; RM ESI 910A Sampler (Year Deployed: unknown)
2016-2017
ATEC 2200 (Year Deployed: 2012)
2018
ATEC 2200 (Year Deployed: 2018)
Analytical Equipment
Carbonyls
2004-2018
Waters Alliance 2695 HPLC with UV/Vis detection (Year Deployed: 2003)
Chormium VI
2005-2013
Dionex 300 ion chromatography system (Year Deployed: 2001)
PAHs
2008-2014
HP/Agilent 5890/5971 GC/MS (Year Deployed: 2008)
2015-2018
HO/Agilent 7890B/5975C GC/MS (Year Deployed: 2015)
PM10 Metals
2004-2010
Varian Ultra Mass ICP/MS (Year Deployed: 2001)
2011-2018
Agilent 7700x ICP-MS (Year Deployed: 2011)
VOCs
2004-2007
HP/Agilent GC/5973 MS (Year Deployed: unknown)
2008-2014
Agilent 7890/5975 GC/MS (Year Deployed: 2008)
2015-2018
Agilent 7890A/5975C GC/MS (Year Deployed: 2008)
Preconcentrator Equipment
VOCs
2004-2004
Entech 7100, Entech 7100 (Year Deployed: unknown)
2005-2014
Entech 7100A (Year Deployed: 2003)
2015-2018
Entech 7150 (Year Deployed: 2012)
Standards Preparation Equipment
VOCs
2004-2012
Entech 4600A (dynamic dilution) (Year Deployed: 2003)
2013-2014
Entech 4600A (dynamic dilution) (Year Deployed: unknown)
2015-2018
Entech 4600D (dynamic dilution) (Year Deployed: 2015)
Canister Cleaning Equipment
VOCs
2004-2004
Entech (hot) (Year Deployed: unknown)
2005-2010
unknown (Year Deployed: unknown)
2011-2014
Entech 3100A (hot) (Year Deployed: unknown)
2015-2018
Entech 3100A (hot) (Year Deployed: 2015)
PM10 Extraction Equipment
PM10 Metals
2004-2009
Varian (Hotblock) (Year Deployed: 2002)
2010-2016
Environmental Express (Hotblock) (Year Deployed: 2010)
2017-2018
SCP Science Digi Prep MS (Year Deployed: 2017)
Chromium VI Extraction Equipment
Chormium VI
2005-2010
Branson 8510 (Sonicator) (Year Deployed: 2001)
2011-2011
Branson 8510 Sonicator/Branson Shaker (Year Deployed: 2001/2011)
2012-2013
Branson Shaker (Year Deployed: 2011)
PAHs Extraction Equipment
PAHs 2008-2018 Dionex -300 (ASE) (Year Deployed: 2004)
Page 25 of 25
------- |