APPENDIX A: DATA
Table A1. Analyte mass collected (pg/min) in headspace vapor
above sand containing buried U.S. military-grade TNT, at 23C,
and three moisture levels.
Air dry
2.1% moisture
3.1% moisture
Sample
Rep A
Rep B
Rep A
Rep B
Rep A
Rep B
6 days
1,3-DNB
29.3
41.2
561
433
285
289
1,2-DNB
16.5
21.1
106
79.2
57.9
59.8
2,5-DNT
2.34
<d
61.6
<d
35.9
37.9
2,4-DNT
2.36
3.93
754
600
441
497
3,5-DNT
<d
<d
175
<d
108
119
1,3,5-TNB
<d
<d
<d
<d
<d
<d
2,4,6-TNT
0.267
0.305
20.8
14.9
13.7
32.8
15 days
1,3-DNB
252
738
1183
285
234
519
1,2-DNB
81.3
181
228
63.7
57.7
104
2,5-DNT
20.1
55.0
115
20.8
19.0
49.2
2,4-DNT
118
31.0
562
520
1024
>1260
3,5-DNT
10.5
26.9
370
108
101
193
1,3,5-TNB
<d
<d
3.91
4.55
3.22
2.18
2,4,6-TNT
7.32
8.39
69.2
40.1
33.0
55.2
22 days
1,3-DNB
52.7
76.0
not done
1148
271
648
1,2-DNB
27.0
37.7
185
64.8
128
2,5-DNT
3.68
0.312
64.4
18.9
50.6
2,4-DNT
23.2
32.8
601
1270
>1378
3,5-DNT
2.49
3.51
334
117
<d
1,3,5-TNB
<d
<d
39.7
6.20
4.80
2,4,6-TNT
1.17
1.02
70.8
68.0
118
34 days
1,3-DNB
235
322
543
1237
935
319
1,2-DNB
82.6
109
126
215
183
73.6
2,5-DNT
19.0
23.7
48.5
77.0
68.2
23.6
2,4-DNT
189
203
1138
791
>1546
>1546
3,5-DNT
26.0
<d
244
428
359
159
1,3,5-TNB
<d
<d
55.7
20.4
15.0
25.0
2,4,6-TNT
17.7
14.0
352
322
283
392
63 days
1,3-DNB
295
277
1800
1187
1003
820
1,2-DNB
98.6
91.5
334
216
196
148
2,5-DNT
21.2
19.6
151
74.1
69.8
55.0
2,4-DNT
161
152
564
>950
>950
>951
3,5-DNT
19.9
19.3
527
1425
329
279
1,3,5-TNB
<d
<d
31.9
20.9
18.0
11.9
2,4,6-TNT
7.25
7.41
206
257
247
199
112 days
1,3-DNB
not done
25.2
not done
1725
not done
994
1,2-DNB
15.4
328
193
2,5-DNT
1.75
108
71.3
2,4-DNT
8.67
2719
1923
3,5-DNT
1.15
538
368
1,3,5-TNB
<d
19.8
6.80
2,4,6-TNT
1.25
310
225
<d Values were less than the detection limit
> bold Value > detector maximum signal
23
To Contents
Previous Page
