Table 3. Concentrations in μg·kg-1 of bifenthrin and permethrin enantiomers and ER in sediments from a nursery sediment disposal site (n = 3).
(Z)-cis-bifenthrin
|
cis-Permethrin
|
|||||
---|---|---|---|---|---|---|
Sample* | (+) | (–) | ER | (+) | (–) | ER |
A* | ||||||
0–15 cm | 69.7 ± 1.3 | 68.1 ± 1.2 | 1.02 ± 0.02 | 26.7 ± 1.9 | 25.3 ± 1.6 | 1.05 ± 0.02 |
15–30 cm | 93.3 ± 1.3 | 84.0 ± 1.1 | 1.11 ± 0.03 | 45.6 ± 1.6 | 35.0 ± 1.7 | 1.30 ± 0.02 |
30–45 cm | 50.3 ± 10.6 | 38.3 ± 1.5 | 1.32 ± 0.03 | 15.8 ± 1.5 | 10.3 ± 1.4 | 1.54 ± 0.03 |
B* | ||||||
0–15 cm | 152.9 ± 2.3 | 149.6 ± 2.4 | 1.02 ± 0.03 | 43.3 ± 1.2 | 41.5 ± 1.4 | 1.02 ± 0.03 |
15–30 cm | 177.2 ± 1.5 | 159.9 ± 2.5 | 1.11 ± 0.03 | 65.5 ± 1.2 | 48.8 ± 1.1 | 1.33 ± 0.02 |
C* | ||||||
0–15 cm | 143.2 ± 2.4 | 139.9 ± 2.4 | 1.32 ± 0.02 | 50.6 ± 1.3 | 48.2 ± 1.2 | 1.05 ± 0.03 |
15–30 cm | 189.9 ± 2.5 | 170.4 ± 3.1 | 1.11 ± 0.03 | 80.7 ± 1.5 | 60.3 ± 1.6 | 1.32 ± 0.03 |
Formulation | — | — | 1.02 ± 0.03 | — | — | 0.99 ± 0.02 |
—, not applicable.
A, B, and C indicate sampling location