Table A2. Second VOC study--Effect of rinsing.
Analyte conc. (mg/L) in
Analyte conc. (mg/L) in
10-min controls
24-hr controls
MNT
TCE
PDCB
PCE
MNT
TCE
PDCB
PCE
A
2.30
2.12
1.99
2.07
2.29
2.09
1.96
2.11
B
2.28
2.08
1.93
2.05
2.28
2.05
1.97
2.09
C
2.29
2.07
1.90
2.02
2.30
2.09
1.89
2.03
2.29
2.09
1.94
2.05
2.29
2.08
1.94
2.08
X
% RSD
0.44
1.3
2.4
1.2
0.44
1.1
2.2
2.0
Desorbed concentration (mg/L) after the following treatments
No treatment
Rinsed samples
10-min sorb /10-min desorb
10-min sorb /10-min desorb
Material
MNT
TCE
PDCB
PCE
MNT
TCE
PDCB
PCE
PVC-A
0.007
0.010
0.015
0.010
LD
0.003
LD
LD
PVC-B
0.007
0.007
0.009
0.009
LD
LD
LD
0.012
PVC-C
0.008
0.009
0.019
0.013
LD
0.004
LD
LD
0.007
0.009
0.014
0.011
LD
<0.003
LD
<0.007
X
% RSD
7.9
18
35
20
% of initial
0.32
0.4
0.8
0.5
PTFE-A
0.001
0.012
0.016
0.020
LD
0.007
0.009
0.014
PTFE-B
0.002
0.012
0.014
0.017
0.001
0.008
0.016
0.016
PTFE-C
0.002
0.011
0.020
0.023
LD
0.012
0.010
0.015
0.002
0.012
0.017
0.020
LD
0.009
0.012
0.015
X
% RSD
35
4.9
18
15
29
32
7
% of initial
0.07
0.56
0.86
0.98
0.43
0.60
0.72
SS-A
0.006
0.005
0.005
0.005
LD
LD
LD
LD
SS-B
0.002
0.004
0.014
0.007
LD
LD
LD
LD
SS-C
0.010
0.008
0.011
0.010
LD
LD
LD
0.006
0.006
0.006
0.010
0.007
LD
LD
LD
<0.005
X
% RSD
67
37
46
34
% of initial
0.26
0.27
0.52
0.36
24-hr sorb /10-min desorb
24-hr sorb /10-min desorb
Material
MNT
TCE
PDCB
PCE
MNT
TCE
PDCB
PCE
PVC-A
0.005
0.011
0.011
0.010
LD
0.006
LD
LD
PVC-B
0.008
0.010
0.015
0.017
0.001
0.005
LD
0.008
PVC-C
0.007
0.007
0.015
0.009
0.001
0.005
0.009
0.007
0.007
0.009
0.014
0.012
LD
0.005
LD
<0.006
X
% RSD
23
22
17
36
11
% of initial
0.29
0.45
0.70
0.59
0.26
PTFE-A
0.002
0.020
0.018
0.038
0.001
0.019
0.022
0.035
PTFE-B
0.004
0.024
0.030
0.040
0.002
0.018
0.030
0.049
PTFE-C
0.004
0.022
0.026
0.040
0.002
0.014
0.022
0.031
0.003
0.022
0.025
0.039
0.002
0.017
0.025
0.038
X
% RSD
35
9.1
25
2.9
35
16
19
25
% of initial
0.15
1.1
1.3
1.9
0.07
0.82
1.3
1.8
SS-A
0.007
0.004
0.018
0.018
LD
LD
LD
LD
SS-B
0.010
0.010
0.018
0.020
LD
0.004
LD
LD
SS-C
0.007
0.005
0.026
0.018
LD
LD
LD
0.006
0.008
0.006
0.021
0.019
LD
<0.003
LD
<0.005
X
% RSD
22
51
22
6.2
% of initial
0.35
0.30
1.1
0.91
18
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