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Maximum Pesticide Concentrations in Agricultural Runoff: A Semiempirical Prediction Formula
Author(s) -
Wauchope R. D.,
Leonard R. A.
Publication year - 1980
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1980.00472425000900040025x
Subject(s) - surface runoff , pesticide , environmental science , pesticide application , water quality , agriculture , runoff model , hydrology (agriculture) , runoff curve number , agronomy , geography , ecology , geology , geotechnical engineering , biology , archaeology
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.