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Journal of Environmental Quality Abstract -

Maximum Pesticide Concentrations in Agricultural Runoff: A Semiempirical Prediction Formula1


This article in JEQ

  1. Vol. 9 No. 4, p. 665-672
    Received: Dec 1, 1979

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  1. R. D. Wauchope and
  2. R. A. Leonard2



Using data compiled from the literature on the concentrations of pesticides observed in runoff water, a semiempirical prediction formula has been constructed which is very crude, but which should be useful to water-quality planners for estimating worst-case pesticide inputs from agricultural sources. The maximum “edge-of-field” pesticide concentrations in individual runoff events can be predicted within about one order of magnitude if the pesticide formulation, use, and application rate are known, together with the time elapsed between application of the pesticide and subsequent runoff events. Pesticides are grouped into four broad classes according to their “availability” for runoff loss.

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