Scientific Investigations Report 2007–5180
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5180
Table 9. Pesticides detected in canal samples collected during July 2000 sampling and Koc values, Yakima River Basin, Washington.
[Pesticide concentrations screened at a common level of 0.020 micrograms per liter (μg/L). Pesticide degradates are grouped with their parent compounds, indented, and italicized. Number of samples, 11. Abbreviations: Koc, organic carbon-water partitioning coefficient; mL/g, milliliter per gram; >, greater than]
| Compound | Number of detections |
Koc (mL/g) |
|---|---|---|
| Dicamba | 1 | 2 |
| 2,4-D | 9 | 20 |
| Dinoseb | 1 | 30 |
| Terbacil | 1 | 55 |
| Methomyl | 1 | 72 |
| 2,4-D methyl ester | 1 | 97 |
| Atrazine | 2 | 100 |
| 2-Hydroxyatrazine | 1 | >300 |
| Carbaryl | 1 | 300 |
| Diuron | 2 | 480 |
| Disulfoton | 0 | 600 |
| Disulfoton sulfoxide | 1 | 104 |
| Disulfoton sulfone | 1 | 122 |
| Azinphos-methyl | 3 | 1,000 |
| Diazinon | 1 | 1,000 |
| Methyl-parathion | 1 | 5,100 |
U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/sir/2007/5180
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