Assessment of the environmental persistence and long-range transport of endosulfan

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Concentrations of the insecticide endosulfan (α- and β-isomer) and its degradation product endosulfan sulfate in air, seawater and soil are calculated with the global environmental fate model CliMoChem. As model input, physicochemical properties of all three compounds were assembled and a latitudinally and temporally resolved emission inventory was generated. For concentrations in air, model and measurements are in good agreement; a bimodal seasonality with two peaks in spring and fall as it is observed in Arctic air is reproduced by the model. For seawater, the agreement of model and measurements depends on the values of the hydrolysis activation energy of endosulfan used in the model; with relatively high values around 100 kJ/mol, model results match field data well. The results of this assessment of the levels, persistence, and global distribution of endosulfan are also relevant for the evaluation of endosulfan as a Persistent Organic Pollutant under the Stockholm Convention.

Original languageEnglish
JournalEnvironmental Pollution
Volume159
Issue number6
Pages (from-to)1737-1743
Number of pages7
ISSN0269-7491
DOIs
Publication statusPublished - 01.06.2011

    Research areas

  • Chemistry - Arctic Regions, Atmosphere, Endosulfan, Environmental Monitoring, Environmental Pollutants, Environmental Pollution, Insecticides, Kinetics, Models, Chemical, Seasons, Seawater, Soil

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