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@ARTICLE{Karlsson:874629,
      author       = {Karlsson, Anneli S. and Lesch, Michael and Weihermüller,
                      Lutz and Thiele, Björn and Disko, Ulrich and Hofmann, Diana
                      and Vereecken, Harry and Spielvogel, Sandra},
      title        = {{P}esticide contamination of the upper {E}lbe {R}iver and
                      an adjacent floodplain area},
      journal      = {Journal of soils and sediments},
      volume       = {20},
      number       = {4},
      issn         = {1614-7480},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {FZJ-2020-01549},
      pages        = {2067 - 2081},
      year         = {2020},
      abstract     = {PurposePesticide contamination of river waters is a global
                      problem, and therefore, authorities regularly monitor the
                      water quality status. Especially, flood events might
                      transport large pesticide loads downstream and impact
                      adjacent areas such as sensible floodplain environments by
                      deposing particle bound pesticides or by contaminating the
                      environments by dissolved substances directly.
                      Unfortunately, only little attempts were made to quantify
                      the pesticide pollution of such environments, as the
                      monitoring of soil and sediment contamination is by far more
                      time consuming and complicated compared to the analysis of
                      water samples.Materials and methodsIn the study presented,
                      we therefore used a holistic approach starting with the
                      reconstruction of the inundation characteristics of a
                      floodplain located in the upper part of the river Elbe,
                      Germany, by using nearby gauging data, screened databases
                      for pesticide concentrations and calculated pesticide loads,
                      and finally, sampled the floodplain soils along an elevation
                      (inundation) gradient.ResultsAs expected, the reconstructed
                      inundation characteristics showed that the low-lying areas
                      of the backwater inflow of the floodplain were flooded more
                      frequently compared to the areas at higher elevation,
                      whereby even the highest elevations sampled were at least
                      flooded during each decade. Furthermore, pesticide
                      concentrations of the river waters and calculated pesticide
                      loads revealed that 13 pesticides can be found regularly,
                      whereby atrazine, terbuthylazine, metazachlor, metolachlor,
                      isoproturon, and chlorotoluron are the main
                      contaminants.ConclusionConcluding, a spatial pattern in the
                      contamination could be detected. High residues of simazine
                      and ethofumesate were associated with areas of less and more
                      frequent inundations, respectively. The transformation
                      products of atrazine and terbuthylazine (2-hydroxy-atrazine
                      and 2-hydroxy-terbuthylazine) were detected, whereby the
                      quantity could be well explained by the inundation
                      characteristics and pesticide loads of the river water.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000518131900002},
      doi          = {10.1007/s11368-020-02571-w},
      url          = {https://juser.fz-juelich.de/record/874629},
}