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This article in JEQ

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


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doi:10.2134/jeq1980.00472425000900040025x

Maximum Pesticide Concentrations in Agricultural Runoff: A Semiempirical Prediction Formula1

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

Abstract

Abstract

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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