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Faculty for Biology, Chemistry and Earth Sciences

Department Soil Ecology - Prof. Dr. Eva Lehndorff

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Kalbitz, K; Popp, P: Seasonal impacts on b-hexachlorocyclohexane concentration in soil solution, Environmental Pollution, 106, 139-141 (1999)
We analyzed monthly the concentration of b-HCH, a hydrophobic organic contaminant, in aqueous saturation extracts of the topsoil from five differently contaminated sites. b-HCH concentration in the aqueous soil extract shows a high seasonal variability. Concentrations differ up to the 60-fold with peaks up to 2.24 µg L-1. Higher b-HCH concentrations were found in summer and autumn and accompanied by peaks in dissolved organic carbon concentration. This indicates the importance of dissolved organic matter for b-HCH mobilization and the risks for groundwater pollution and plant uptake.
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