Atrazine removal in Danish anaerobic aquifers

Philip Grinder Pedersen, N.P. Arildskov, Hans-Jørgen Albrechtsen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    The pesticide atrazine (6-chloro-N-2-ethyl-N-4-isopropyl-1,3,5-triazine -2,4-diamine) was removed from the water phase in anaerobic laboratory batch incubations with sediment and groundwater from a number of Danish anaerobic aquifers, but not in incubations from aerobic aquifers. The removal process was abiotic since atrazine was also removed from microbially inhibited autoclaved and chloroform amended controls, although in controls amended with mercury, atrazine removal was slowed down. (ring-U-C-14)- atrazine amended samples showed no mineralization to (CO2)-C-14 or transformation to soluble degradation products, indicating that a slow sorption process was responsible for the atrazine removal. Approximately 20% of the applied C-14-atrazine was present in a non-extractable residual sediment bound fraction, indicating the slow sorption process to be in part irreversible. The irreversible sorption process may be important in terms of natural attenuation of atrazine in aquifers.
    Original languageEnglish
    Title of host publicationGroundwater Quality 2001 : Natural and Enhanced Restoration of Groundwater Pollution
    EditorsS. Thornton, S. Oswald
    Place of PublicationOxfordshire, UK
    PublisherIAHS Press
    Publication date2002
    Publication statusPublished - 2002
    Event3rd International Conference on Groundwater Quality - University of Sheffield, Sheffield, United Kingdom
    Duration: 18 Jun 200121 Jun 2001
    Conference number: 3


    Conference3rd International Conference on Groundwater Quality
    LocationUniversity of Sheffield
    Country/TerritoryUnited Kingdom
    SeriesIAHS Publication


    • atrazine
    • irreversible sorption
    • anaerobic


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