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Table B24. Concentrations
(ng/g [ppb]) of pesticide analytes found in NIST mussel tissue V (QA93TIS5) |
Pesticide
Analyte |
Wet Weight Basis
|
Dry Weight Basis
|
Measured
|
Consensusa
|
Measured
|
Consensus
|
| n |
Mean |
Std. Dev. |
Value |
Std. Dev. |
z-Scoreb |
n |
Mean |
Std. Dev. |
Value |
Std. Dev. |
z-Scoreb |
| Hexachlorobenzene |
8 |
0.465 |
0.306 |
0.024 |
0.008 |
57.8c |
8 |
4 |
2.66 |
0.22 |
0.07 |
54c |
| Lindane |
8 |
0.465 |
0.141 |
0.298 |
0.313 |
0.5 |
8 |
3.98 |
1.21 |
2.73 |
2.87 |
0.4 |
| Aldrin |
3 |
0.91 |
0.698 |
0.761 |
0.898 |
0.2 |
3 |
7.87 |
6.07 |
6.98 |
8.24 |
0.1 |
| Heptachlor |
8 |
0.511 |
0.081 |
0.489 |
0.455 |
0 |
8 |
4.38 |
0.71 |
4.49 |
4.17 |
0 |
| Heptachlor epoxide |
8 |
0.759 |
0.266 |
0.525 |
0.396 |
0.6 |
8 |
6.5 |
2.3 |
4.82 |
3.63 |
0.5 |
| -chlordane |
8 |
5.92 |
0.584 |
1.7 |
0.305 |
13.8 |
8 |
50.7 |
5.33 |
15.6 |
2.8 |
12.5 |
| trans-nonachlor |
8 |
1.71 |
0.167 |
1.91 |
0.676 |
-0.3 |
8 |
14.6 |
1.53 |
17.5 |
6.2 |
-0.5 |
| o,p'-DDE |
8 |
4.13 |
0.723 |
0.989 |
0.9 |
3.5 |
8 |
35.3 |
6.47 |
9.07 |
8.26 |
3.2 |
| p,p'-DDE |
8 |
6.27 |
0.626 |
5.5 |
1.48 |
0.5 |
8 |
53.7 |
5.65 |
50.5 |
13.6 |
0.2 |
| p,p'-DDD |
8 |
7.49 |
1.534 |
4.59 |
1.4 |
2.1 |
8 |
64.2 |
13.7 |
42.1 |
12.8 |
1.7 |
| o,p'-DDT |
8 |
nfd |
- |
0.649 |
0.344 |
- |
8 |
- |
- |
5.95 |
3.16 |
- |
| p,p'-DDT |
8 |
0.887 |
0.247 |
0.332 |
0.12 |
4.6 |
8 |
7.61 |
2.19 |
3.05 |
1.1 |
4.1 |
| Mirex |
8 |
0.581 |
0.499 |
0.153 |
0.11 |
3.9 |
8 |
4.99 |
4.31 |
1.4 |
1.01 |
3.6 |
aConsensus values from 1993
NIST/NOAA/NS&T/EPAEMAP intercomparison exercise (NIST 1993).
bz-score = (measured mean - consensus
value) / consensus standard deviation.
cInflated z-score probably resulted from
very low consensus value for hexachlorobenzene.
Table B25 |
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