Table A16. Analyte concentration (pg/mL) in headspace vapor
above clay containing buried U.S. military-grade TNT, at
23C, and three moisture levels.
Air dry
15% moisture
30% moisture
Sample
Rep A
Rep B
Rep A
Rep B
Rep A
Rep B
6 days
1,3-DNB
<d
<d
0.544
0.522
0.532
0.381
1,2-DNB
<d
<d
0.276
0.304
0.283
0.234
2,5-DNT
<d
<d
<d
0.013
<d
<d
2,4-DNT
<d
<d
<d
<d
<d
<d
3,5-DNT
<d
<d
5.07
5.40
4.60
3.68
1,3,5-TNB
<d
<d
<d
<d
<d
<d
2,4,6-TNT
<d
<d
<d
<d
<d
<d
15 days
1,3-DNB
<d
not done
1.70
not done
1.19
not done
1,2-DNB
<d
0.326
0.221
2,5-DNT
<d
0.086
0.033
2,4-DNT
<d
1.72
0.994
3,5-DNT
<d
0.867
0.217
1,3,5-TNB
<d
0.222
0.091
2,4,6-TNT
<d
0.442
0.351
22 days
1,3-DNB
<d
<d
1.52
1.96
1.46
1.74
1,2-DNB
<d
<d
0.218
0.339
0.213
0.302
2,5-DNT
<d
<d
<d
0.077
0.035
0.086
2,4-DNT
<d
<d
2.97
4.11
2.33
3.16
3,5-DNT
<d
<d
<d
0.711
0.272
0.686
1,3,5-TNB
<d
<d
0.102
0.251
0.099
0.250
2,4,6-TNT
<d
<d
0.245
0.348
0.236
0.352
34 days
1,3-DNB
<d
<d
2.33
2.32
2.06
1.77
1,2-DNB
<d
<d
0.284
0.380
0.336
0.211
2,5-DNT
<d
<d
0.034
0.050
0.068
0.029
2,4-DNT
<d
<d
8.09
7.99
6.45
5.60
3,5-DNT
<d
<d
0.867
0.897
0.712
0.594
1,3,5-TNB
<d
<d
0.264
0.073
0.397
0.168
2,4,6-TNT
<d
<d
0.207
0.206
0.184
0.142
63 days
1,3-DNB
<d
<d
1.27
1.47
1.05
1.21
1,2-DNB
<d
<d
0.245
0.263
0.210
0.245
2,5-DNT
<d
<d
0.018
0.012
0.015
0.013
2,4-DNT
<d
<d
5.75
6.35
4.36
5.36
3,5-DNT
<d
<d
0.644
0.719
0.495
0.606
1,3,5-TNB
<d
<d
0.190
0.199
0.188
0.198
2,4,6-TNT
<d
<d
0.125
0.132
0.092
0.114
112 days
1,3-DNB
not done
<d
not done
1.68
not done
1.44
1,2-DNB
<d
0.398
0.355
2,5-DNT
<d
0.013
0.013
2,4-DNT
<d
8.98
7.46
3,5-DNT
<d
1.19
0.994
1,3,5-TNB
<d
0.311
0.309
2,4,6-TNT
<d
0.239
0.231
173 days
1,3-DNB
not done
<d
not done not done not done not done
1,2-DNB
<d
2,5-DNT
<d
2,4-DNT
0.009567427
3,5-DNT
<d
1,3,5-TNB
<d
2,4,6-TNT
0.006760614
<d Values were less than the detection limit.
38
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