Table 2. Means and Standard Deviations of the Retardation Time Estimated Using the Pesticide Detection and Exceedance Frequenciesa.
| detection
(year) |
exceedance
(year) |
|||||
|---|---|---|---|---|---|---|
| total | sand | clay | total | sand | clay | |
| A | 3 ± 1 (0.58) | 2 ± 1 (0.67) | 34 ± 3 (0.74) | 9 ± 1 (0.63) | 9 ± 1 (0.62) | |
| S | 13 ± 2 (0.41) | 11 ± 1 (0.61) | 35 ± 3 (0.74) | 12 ± 1 (0.52) | ||
| DEA | 14 ± 1 (0.62) | 10 ± 1 (0.71) | 33 ± 5 (0.77) | 1 ±1 (0.44) | 24 ± 3 (0.44) | |
| DIA | 15 ± 1 (0.66) | 12 ± 1 (0.55) | 9 ± 1 (0.40) | 19 ± 1 (0.53) | 9 ± 1 (0.44) | 21 ± 3 (0.61) |
| DEIA | 7 ± 1 (0.47) | 1 ± 2 (0.76) | 22 ± 1 (0.78) | 14 ± 1 (0.53) | 11 ± 3 (0.47) | 33 ± 3 (0.73) |
| BAM | 3 ± 4 (0.51) | 5 ± 1 (0.46) | ||||
| B | –1 ± 1 (0.65) | –2 ± 1 (0.68) | ||||
a
The means of the correlation coefficients between the pesticide sales and frequencies are shown in the parenthesis.