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| Titel: |
Lysimeter studies of the experimental insecticide bas 263 I |
| Auteur: |
Herrchen, M. Kordel, W. Klein, W. Hamm, R. T. |
| Verschenen in: |
Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes |
| Paginering: | Jaargang 25 (1990) nr. 1 pagina's 31-53 |
| Jaar: |
1990-02 |
| Inhoud: |
For investigating the leaching behaviour, distribution, and metabolism of the experimental insecticide BAS 263 I within one year following application a lysimeter study with undisturbed soil monolith using the radiolabelled compounds was performed. This was achieved by monitoring the leaching water, and by analyzing radiolabelled residues distribution in the 1 m soil profile and in plants. The soil monoliths were characterized chemically and microbiologically. Concentrations exceeding 0.1 μg/1 of the insecticide itself or of known metabolites were not found at any time in the leachate. One year after application, more than 96 % of the persisting radioactive material were detected in the 0 - 40 cm soil layers as polar non-extractable residues. The insecticide itself was not detected in soil at a limit of 1.8 μg/kg. The total residues in the cultivated crop, especially in the edible parts of the plants, were below 1.3 x 10-4 μg/kg, calculated for the molecular weight of the a.i. and corresponding to less than 0.14 % of the initially applied insecticide. Results on the a.i. and known metabolites were in agreement with those of a field study. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 7 gevonden artikelen
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