Table A2. Mean concentrations (mg/L) of analytes used in the tubing material
study.
Exposure
time
Analyte
(hr)
NB
TDCE
MNT
TCE
CLB
ODCB
PDCB
PCE
Controls
1
11.6
10.9
11.5
15.9
12.7
12.3
11.5
13.2
8
11.2
11.2
11.2
16.4
12.5
12.1
11.5
13.7
24
11.2
11.2
11.2
16.4
12.5
12.1
11.5
13.7
48
11.3
10.2
11.2
15.2
12.2
11.8
11.2
12.0
72
11.3
9.6
11.3
14.3
11.9
11.7
10.9
11.4
Polyurethane
0.827j
0.401m
0.487h,i
0.359l
0.242j
0.232j,k
0.188j
0.257i
1
0.301j
0.130k
0.053k
0.072l
0.032h
0.011g
0.025h
8
D
0.237l
0.041m
0.031n
0.038m
0.018l
0.006k
0.022i
24
D
0.236k
0.022l
0.018i
0.013j
0.007h
48
D
D
D
0.162k
0.019n
0.012j
0.007j
0.006h
0.008g
72
D
D
PVC
1.25i
0.689l,m
0.402i
0.451l
0.255j
0.197k
0.164j
0.236i
1
0.917i
0.253j,k
0.085k
0.122l
0.053h
0.018g
0.015j
0.033h
8
1.10k
0.130l,m
0.053n
0.067m
0.031l
0.013j,k
0.014j
0.018i
24
1.26j
0.115k
0.037l
0.045i
0.023j
0.007i
0.013h
48
D
0.816j
0.034k
0.030n
0.030j
0.017j
0.008h
0.014g
72
D
TPE
1.72i
0.454m
0.640h,i
0.351l
0.239j
0.228j,k
0.188j
0.237i
1
0.549i,j
0.116k
0.141k
0.061l
0.034h
0.012g
0.012h
8
D
0.374l
0.042m
0.079n
0.022m
0.016l
0.007j,k
0.005i
24
D
0.252k
0.048k
0.060k,l
0.006i
0.006j
48
D
D
D
0.144k
0.062m,n
0.007j
0.009j
72
D
D
D
D
Plasticized PP (formulation 2)
2.34h
0.553m
0.805h,i
0.356l
0.235j
0.193k
0.155j
0.192i
1
0.744i
0.168j,k
0.188k
0.084l
0.045h
0.014g
0.010j
0.012h
8
l
0.048m
0.089n
0.045m
0.030l
0.010j,k
0.010j
0.007i
24
0.324
0.152k
0.004k
0.044l
0.010i
0.010j
0.006i
0.006h
48
D
0.100k
0.019n
0.019j
0.013j
72
D
D
D
D
Plasticized PP (formulation 1)
2.43h
0.600m
0.846h
0.400l
0.264j
0.218k
0.177j
0.227i
1
i
0.181j,k
0.219k
0.086l
0.049h
0.017g
0.010j
0.014h
8
0.849
0.426l
0.046m
0.114n
0.040m
0.028l
0.010j,k
0.007i
24
D
k
0.008k
0.064k,l
0.014i
0.013j
0.006i
0.006h
48
0.206
D
0.098k
0.034n
0.007j
0.010j
0.006g
72
D
D
D
Polyester lining in PVC shell
1.49i
1.07l
0.674h,i
0.778l
0.442j
0.304j,k
0.248j
0.411i
1
0.533i,j
0.517j,k
0.166k
0.246k,l
0.104h
0.031g
0.023i,j
0.066h
8
l
0.329l
0.122n
0.164m
0.074l
0.026j,k
0.016j
0.041i
24
0.429
0.339k
0.229k
0.089k,l
0.114i
0.053j
0.029i
0.012f
0.028h
48
0.313j,k 0.160i,j,k
0.084l,m,n
0.085j
0.042j
0.025h
0.010j
0.026g
72
LDPE
8.52e
3.42j
4.92e,f
2.24k
1.35i
0.641i,j
0.440j
0.573i
1
6.26e
1.71i
2.64g
0.934j
0.507g,h
0.183g
0.115i,j
0.165h
8
4.73g
0.931k
1.67i
0.510l
0.294k
0.109i,j
0.067j
0.086i
24
3.83f
0.602j
1.22i
0.329i
0.195i,j
0.073i
0.044f
0.061g,h
48
2.95f
0.373i,j
0.902i,j
0.225j
0.139i,j
0.054h
0.031j
0.037g
72
For each analyte and sampling time, values with the letter "a" are not significantly different from the
controls. For values marked with letters other than "a," all values marked with the same letter are not
significantly different from each other. For example, there is no significant difference between the
concentration of nitrobenzene in samples exposed to either PVC or TPE for 1 hour (both marked "i").
D--Concentration of analyte was below MDL.
22
Previous Page
