Aquifer vulnerability to pesticide migration through till aquitards.

  title={Aquifer vulnerability to pesticide migration through till aquitards.},
  author={Peter R. J\orgensen and Larry D. McKay and Jens P Kistrup},
  journal={Ground water},
  volume={42 6-7},
This study investigates the influence of key factors-mainly recharge rate and degradation half-life--on downward migration of the widely used pesticide mecoprop (MCPP) through a typical clayey till aquitard. The study uses the numerical model FRAC3Dvs, which is a three-dimensional discrete fracture/matrix diffusion (DFMD) numerical transport model. The model was calibrated with laboratory and field data from a site near Havdrup, Denmark, but the overall findings are expected to be relevant to… CONTINUE READING


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