Table 8. Mean analyte concentrations (pg/mL) in headspace vapor above sand
containing buried U.S. military-grade TNT, at three temperatures and three
moisture levels.
23C
4C
12C
Analyte
Air dry
2.10%
3.10%
Air dry
2.10%
3.10%
Air dry
2.10%
3.10%
6 days
1,3-DNB
8.21
116
66.7
1,2-DNB
4.37
21.5
13.7
2,5-DNT
<0.544
<14.3
8.59
2,4-DNT
0.700
151
105
3,5-DNT
<d
<40.7
26.5
1,3,5-TNB
<d
<d
<d
2,4,6-TNT
0.125
7.76
10.1
15 days
12 days
13 days
1,3-DNB
115
171
87.7
<d
7.05
6.39
<d
<d
<d
1,2-DNB
30.6
34.0
18.8
0.023
1.48
1.42
<d
<d
<d
2,5-DNT
8.74
15.8
7.96
<d
1.05
1.00
<d
<d
<d
2,4-DNT
16.5
172
0.132
7.12
6.82
0.015
0.103
0.059
>203
3,5-DNT
4.35
55.6
34.3
<d
2.23
2.00
<d
<d
<d
1,3,5-TNB
<d
1.84
1.17
<d
<d
<d
<d
<d
<d
2,4,6-TNT
3.42
23.8
19.2
0.371
0.980
1.91
<d
<d
<d
22 days
19 days
20 days
1,3-DNB
15.0
267
107
<0.036
33.6
12.4
<d
<d
<d
1,2-DNB
7.52
43.1
22.4
<0.008
6.50
2.90
<d
<d
<d
2,5-DNT
0.464
15.0
8.09
<0.017
3.64
1.39
<d
<d
<d
2,4-DNT
6.23
208
0.102
44.9
21.3
0.042
0.032
0.034
>306
3,5-DNT
0.699
77.6
27.2
0.031
9.33
4.74
<d
<d
<d
1,3,5-TNB
<d
17.20
2.39
<0.063
<0.082
0.071
<d
<d
<d
2,4,6-TNT
0.476
30.8
40.4
0.950
1.58
2.56
<d
<d
<d
34 days
35 days
36 days
1,3-DNB
64.8
207
146
<d
45.5
30.3
<d
1.00
0.592
1,2-DNB
22.3
39.7
29.9
<d
9.61
6.59
<d
0.101
0.058
2,5-DNT
4.97
14.6
10.7
<d
5.15
3.31
<d
0.046
0.027
2,4-DNT
43.6
0.030
69.6
50.2
0.045
0.042
0.044
>298
>260
3,5-DNT
<6.06
78.2
60.2
<d
14.7
<10.7
<d
<d
<d
1,3,5-TNB
<d
16.5
8.72
<d
0.243
0.249
<d
<d
<d
2,4,6-TNT
6.90
147
147
0.033
4.22
6.36
<d
<d
<d
63 days
67 days
69 days
1,3-DNB
66.5
348
212
<d
40.6
32.2
<d
4.19
3.30
1,2-DNB
22.1
64.0
40.0
<d
9.20
7.00
<d
0.420
0.316
2,5-DNT
4.75
26.2
14.5
<d
5.22
3.93
<d
0.197
0.144
2,4-DNT
34.9
0.030
66.1
52.6
0.026
0.501
0.316
>168
>211
3,5-DNT
4.56
227
70.7
<d
13.0
10.4
<d
0.065
<0.054
1,3,5-TNB
<d
11.5
6.51
<d
0.103
0.113
<d
<0.021
<0.019
2,4,6-TNT
3.19
101
96.8
0.010
2.73
3.70
<d
0.014
0.011
112 days
111 days
110 days
1,3-DNB
5.86
401
231
<d
47.8
31.8
<d
7.76
7.43
1,2-DNB
3.58
76.3
44.9
<d
10.6
7.19
0.032
0.830
0.760
2,5-DNT
0.407
25.2
16.6
<d
6.36
4.15
<d
0.403
0.365
2,4-DNT
1.93
604
427
0.018
82.0
56.5
0.026
1.38
1.31
3,5-DNT
0.267
125
85.6
<d
16.7
11.4
<d
0.218
0.203
1,3,5-TNB
<d
8.59
2.96
<d
<d
<d
<d
<d
<d
2,4,6-TNT
0.542
135
97.7
0.006
2.28
1.61
<d
<d
<d
173 days
173 days
1,3-DNB
<d
not done
<d
not done
1,2-DNB
0.080
0.074
2,5-DNT
<d
<d
2,4-DNT
0.020
0.010
3,5-DNT
<d
<d
1,3,5-TNB
0.010
<d
2,4,6-TNT
0.042
0.016
<d
Values were less than the detection limit.
One replicate had a value greater than the detector maximum signal.
bold
Only values available were greater than the detector maximum signal.
bold
italics
One of the replicate values was less than the detection limit.
italics
Only one replicate was analyzed.
14
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