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| Titel: |
The effect of soil temperature on the degradation of CLS, trans - permethrin in soil |
| Auteur: |
Jordan, E. G. Kaufman, D. D. Kayser, A. J. |
| Verschenen in: |
Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes |
| Paginering: | Jaargang 17 (1982) nr. 1 pagina's 1-17 |
| Jaar: |
1982 |
| Inhoud: |
The degradation of [carbonyl - 14C] - cis, trans-permethrin was studied in Dubbs fine sandy loam soil incubated at 10, 25, and 40°C from 0 to 64 days. The most rapid degradation of permethrin to [carbonyl - 14C] - cis,-trans -3- (2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic acid (DCVA) and ultimately 14CO2 occurred at 25°C. Rapid degradation to DCVA also occurred at 40°C, however, further degradation of DCVA to 14CO2 was reduced. Permethrin degradation to 14CO2 was slowest at 10°C. The de gradation rate of trans-permethrin was greater than the cis-permethrin at all temperatures tested. The halflives of cis-and trans-permethrin were 55 and 14 days at 10°C, 12 and 5 days at 25°C, and 27 and 4 days at 40°C, respectively. Compounds identified from treated soil were the original [carbonyl - 14C] -cis, trans-permethrin and the major degradation products cis-, and trans-DCVA. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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