Table 6. Concentrations of selected organochlorine pesticides, total polychlorinated biphenyls, and selected polybrominated diphenyl ethers measured by semipermeable membrane devices (SPMDs) at three sites in the McKenzie River basin, Oregon, September–October 2007.
[A and B are replicate samples. MDL, method detection limit; MQL, method quantitation limit; MQL, method quantitation limit; “<,” compound not present at MDL; NQ, not quantified--compound detected at a level less than the MQL; detections are highlighted as bold type in shaded cells]
| Pesticides and compounds |
Concentrations, in nanograms of chemical per deployed SPMD |
| Water-treatment plant inlet |
|
Cedar Creek |
|
Camp Creek |
MDL |
MQL |
| A |
B |
A |
B |
A |
B |
| Organochlorine pesticides |
| Trifluralin |
NQ |
<0.05 |
|
<0.05 |
<0.05 |
|
<0.05 |
<0.05 |
0.1 |
0.3 |
| Hexachlorobenzene (HCB) |
<0.62 |
NQ |
|
NQ |
NQ |
|
<0.62 |
<.62 |
0.6 |
1.8 |
| Pentachloroanisole (PCA) |
5.9 |
7.3 |
|
20 |
18 |
|
21 |
18 |
0.9 |
2.2 |
| Tefluthrin |
<3.8 |
NQ |
|
<3.8 |
<3.8 |
|
<3.8 |
<3.8 |
3.8 |
8.1 |
| alpha-Benzenehexachloride (a-BHC) |
<1.9 |
<1.9 |
|
<1.9 |
<1.9 |
|
NQ |
<1.9 |
1.9 |
2.5 |
| Diazinon |
<.25 |
<.25 |
|
<0.25 |
<0.25 |
|
<0.25 |
<.25 |
0.3 |
1.3 |
| Lindane |
<3.2 |
<3.2 |
|
<3.2 |
<3.2 |
|
<3.2 |
<3.2 |
3.2 |
6.0 |
| beta-Benzenehexachloride (b-BHC) |
<2.6 |
<2.6 |
|
<2.6 |
<2.6 |
|
<2.6 |
<2.6 |
2.6 |
6.2 |
| Heptachlor |
<.20 |
<.20 |
|
<0.20 |
<0.20 |
|
<0.20 |
<.20 |
0.2 |
1.0 |
| delta-Benzenehexachloride (d-BHC) |
NQ |
<2.6 |
|
<2.6 |
NQ |
|
<2.6 |
<2.6 |
2.6 |
3.4 |
| Dacthal |
<.27 |
NQ |
|
NQ |
NQ |
|
NQ |
NQ |
0.3 |
1.0 |
| Chlorpyrifos |
NQ |
<.53 |
|
<0.53 |
NQ |
|
<0.53 |
NQ |
0.5 |
1.5 |
| Oxychlordane |
<.20 |
<.20 |
|
<0.20 |
<0.20 |
|
<0.20 |
<.20 |
0.2 |
1.0 |
| Heptachlor Epoxide |
NQ |
NQ |
|
<0.20 |
<0.20 |
|
<0.20 |
NQ |
0.2 |
1.0 |
| trans-Chlordane |
NQ |
NQ |
|
NQ |
NQ |
|
NQ |
1.9 |
0.7 |
1.2 |
| trans-Nonachlor |
<.20 |
<.20 |
|
NQ |
NQ |
|
<0.20 |
1.1 |
0.2 |
1.0 |
| o,p'-DDE |
<2.2 |
<2.2 |
|
<2.2 |
<2.2 |
|
<2.2 |
<2.2 |
2.2 |
5.6 |
| cis-Chlordane |
<1.2 |
<1.2 |
|
<1.2 |
<1.2 |
|
<1.2 |
NQ |
1.2 |
3.0 |
| Endosulfan |
<.20 |
<.20 |
|
NQ |
NQ |
|
NQ |
2.5 |
0.2 |
1.0 |
| p,p'-DDE |
<6.6 |
<6.6 |
|
NQ |
NQ |
|
<6.6 |
NQ |
6.6 |
8.3 |
| Dieldrin |
<1.5 |
<1.5 |
|
NQ |
NQ |
|
<1.5 |
<1.5 |
1.5 |
3.0 |
| o,p'-DDD |
<5.0 |
<5.0 |
|
<5.0 |
<5.0 |
|
<5.0 |
<5.0 |
5.0 |
13.3 |
| Endrin |
<1.1 |
<1.1 |
|
<1.1 |
<1.1 |
|
<1.1 |
<1.1 |
1.1 |
3.4 |
| cis-Nonachlor |
NQ |
<.44 |
|
<0.44 |
<0.44 |
|
<0.44 |
<.44 |
0.4 |
1.2 |
| o,p'-DDT |
<.20 |
<.20 |
|
<0.20 |
<0.20 |
|
<0.20 |
<.20 |
0.2 |
1.0 |
| p,p'-DDD |
<2.9 |
<2.9 |
|
NQ |
NQ |
|
<2.9 |
<2.9 |
2.9 |
6.7 |
| Endosulfan-II |
<.20 |
<.20 |
|
<0.20 |
<0.20 |
|
<0.20 |
<.20 |
0.2 |
1.0 |
| p,p'-DDT |
NQ |
NQ |
|
NQ |
NQ |
|
2.3 |
NQ |
1.7 |
2.2 |
| Endosulfan Sulfate |
<.20 |
<0.20 |
|
<0.20 |
<0.20 |
|
<0.20 |
NQ |
0.2 |
1.0 |
| p,p'-Methoxychlor |
<2.0 |
<2.0 |
|
<2.0 |
<2.0 |
|
<2.0 |
<2.0 |
2.0 |
10.0 |
| Mirex |
<.20 |
<0.20 |
|
<0.20 |
<0.20 |
|
<0.20 |
<.20 |
0.2 |
1.0 |
| cis-Permethrin |
<18 |
<18 |
|
<18 |
<18 |
|
<18 |
<18 |
18.1 |
51.6 |
| trans-Permethrin |
<5.5 |
<5.5 |
|
<5.5 |
<5.5 |
|
<5.5 |
<5.5 |
5.5 |
16.5 |
| Total polychlorinated biphenyls |
| Total PCBs |
<40 |
<40 |
|
<40 |
<40 |
|
<40 |
<40 |
40 |
200 |
| Polybrominated diphenyl ethers |
| PBDE-28 |
NQ |
<0.46 |
|
<0.46 |
<0.46 |
|
<0.46 |
<0.46 |
0.5 |
1.0 |
| PBDE-47 |
<3.6 |
<3.6 |
|
<3.6 |
<3.6 |
|
<3.6 |
<3.6 |
3.6 |
8.2 |
| PBDE-99 |
<2.1 |
<2.1 |
|
<2.1 |
<2.1 |
|
<2.1 |
<2.1 |
2.1 |
3.7 |
| PBDE-100 |
<.82 |
<0.82 |
|
<0.82 |
<0.82 |
|
<0.82 |
<.82 |
.8 |
2.3 |
| PBDE-153 |
<.23 |
<0.23 |
|
<0.23 |
<0.23 |
|
<0.23 |
<.23 |
.2 |
1.0 |
|
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U.S. Department of the Interior | U.S. Geological Survey