Vertical distribution of organochlorine pesticides in humus along Alpine altitudinal profiles in relation to ambiental parameters
| Autor: | Bernhard Henkelmann, Karl-Werner Schramm, Norbert Kräuchi, T. Faus-Kessler, R. Bassan, Wolfgang Moche, Peter Weiss, W. Levy, A. Zsolnay, G. Jakobi, Jarmila Kotalik, Primož Simončič, Claudio A. Belis, Manfred Kirchner, Silke Bernhöft, M. Uhl |
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| Rok vydání: | 2009 |
| Předmět: |
chemistry.chemical_classification
Air Pollutants Persistent organic pollutant Atmosphere Heptachlor Altitude Health Toxicology and Mutagenesis Soil organic matter General Medicine Soil carbon Toxicology Pollution Humus Dieldrin chemistry.chemical_compound chemistry Environmental chemistry Hydrocarbons Chlorinated Humans Soil Pollutants Environmental science Organic matter Aldrin Pesticides Environmental Monitoring |
| Zdroj: | Environmental Pollution. 157:3238-3247 |
| ISSN: | 0269-7491 |
| Popis: | In forest soils along vertical profiles located in different parts of the Alps, concentrations of persistent organic pollutants (POPs), namely organochlorine pesticides (OCPs) like dichlorodiphenyltrichloroethanes (DDTs), hexachlorobenzene (HCB), hexachlorocyclohexanes (HCH), heptachlor, aldrin, dieldrin and mirex, were measured. Though local characteristics of the sites are influenced by numerous factors like orographic and meteorological parameters, forest stand characteristics and humus parameters, we ascertained a marked vertical increase of concentrations of some organochlorine compounds in the soil. On the basis of climatological values of each site, we found that the contamination increase with altitude can be ascribed to a certain 'cold condensation effect'. In addition, the perennial atmospheric deposition of POPs is controlled by precipitation. Other key parameters explaining the accumulation of POPs are the soil organic carbon stocks, the turnover times, the re-volatilisation and degradation processes, which vary with altitude. |
| Databáze: | OpenAIRE |
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