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Alachlor, metolachlor, atrazine, cyanazine, simazine and terbuthylazine were applied to plots containing a drainage system in order to determine the concentrations of parent compounds and their metabolites in soil and in leachate samples. The results indicated that all these herbicides disappeared substancially in the soil surface layer following first order kinetics. In the surface soil, the disappearance...
Pesticide metabolites which maintain the phytotoxic activity of the parent compounds or some kind of biological activity may represent a risk to human health if present in drinking water above certain concentrations. Using laboratory methods, the soil persistence (DT 50 ) and mobility (Koc) of desethylatrazine, deisopropylatrazine, desethylterbuthylazine, 3-(4-hydroxycyclohexyl)-6-(methylamino)-1-methyl-1,3,5-triazine-2,4-(1H,3H)-...
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