The movement of pesticides through soil and groundwater to pumping wells for drinking-water supply was modelled. Most of the retardation and transformation occurs when a pesticide moves through the unsaturated zone. Computed leaching to groundwater increased when soil heterogeneity was taken into account. A column method was developed to measure the rate of pesticide transformation in the aquifer as input for models. The fluctuation of the concentration in the pumping well due to the application pattern was computed to be largest for aquifers with short characteristic travel times of the solute.
|Title of host publication||Soil structure and transport processes : implications for water, gases, nutrients, pesticides, and contaminants in soils|
|Editors||P.A.C. Raats, H. Rogaar, A.H. van den Heuvel-Pieper|
|Place of Publication||Wageningen|
|Publisher||Netherlands Integrated Soil Research Programme|
|Publication status||Published - 1996|
|Name||Netherlands Integrated Soil Research Programme reports|
- water quality
- pollution control
- groundwater pollution
- plant protection
- pesticide residues
Leistra, M., Beltman, W. H. J., Boesten, J. J. T. I., Matser, A. M., & van der Zee, S. E. A. T. M. (1996). Modelling regional transport of pesticide residues in groundwater. In P. A. C. Raats, H. Rogaar, & A. H. van den Heuvel-Pieper (Eds.), Soil structure and transport processes : implications for water, gases, nutrients, pesticides, and contaminants in soils (pp. 75-81). (Netherlands Integrated Soil Research Programme reports; No. 6). Wageningen: Netherlands Integrated Soil Research Programme.