Table 3 (cont'd). Concentrations of analytes found in dry and moist AEC
soil exposed at room temperature for one week to vapor from Kodak TNT.
Soil concentration (g/g)
Dry
Initially moist
Not air-dried*
Air-dried†
Not air-dried
Air-dried
0.088
0.076
0.0030
0.0029
2,5-DNT
0.090
0.082
0.0031
0.0029
0.090
0.082
0.0033
0.0032
0.093
0.084
0.0035
0.0032
0.106
0.085
0.0043
0.0035
Mean
0.093
0.082
0.0035
0.0031
Std. dev.
0.0074
0.0035
0.0005
0.0002
% loss
12%
not sig.
t stat
3.19**
1.34
0.078
0.064
0.013
0.010
2,3-DNT
0.080
0.065
0.013
0.010
0.080
0.068
0.013
0.011
0.084
0.070
0.016
0.011
0.092
0.070
0.017
0.012
Mean
0.0828
0.0672
0.014
0.011
Std. dev.
0.0059
0.0030
0.0020
0.0008
% loss
19%
24%
t stat
5.28**
3.60**
0.22
0.18
0.079
0.078
3,5-DNT
0.22
0.20
0.081
0.079
0.23
0.20
0.083
0.084
0.24
0.20
0.089
0.085
0.25
0.21
0.11
0.091
Mean
0.23
0.20
0.088
0.083
Std. dev.
0.015
0.009
0.011
0.005
% loss
13%
not sig.
t stat
3.88**
0.85
0.0081
0.0074
<d
<d
3,4-DNT
0.0082
0.0075
<d
<d
0.0084
0.0077
<d
<d
0.0086
0.0078
<d
<d
0.0096
0.0079
<d
<d
Mean
0.0086
0.0077
Std. dev.
0.0006
0.0002
% loss
11%
t stat
3.24**
<d
<d
0.0073
0.0053
4-Am-DNT
<d
<d
0.0074
0.0054
<d
<d
0.0077
0.0054
<d
<d
0.0082
0.0068
<d
<d
0.012
0.0072
Mean
0.008
0.006
Std. dev.
0.002
0.001
% loss
28%
t stat
2.66**
*Not air-dried: Five 2-g subsamples each of dry and moist soils placed in 10 mL acetonitrile
immediately after removal from chamber containing TNT vapor.
†Air-dried: Five 2-g subsamples each from dry and initially moist soils that were spread on
aluminum pans and exposed in a ventilated area for 20 hours. This treatment served to air-
dry the initially moist soil.
**Mean concentrations from five replicates were compared using a t-test to determine if air-
drying resulted in analyte loss. Critical value of t for one-tailed test (alpha = 0.05) is 1.86.
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