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Relations between pesticide use and riverine flux in the Mississippi River Basin

Steven J. Larson·Paul D. Capel·Donald A. Goolsby·Steven D. Zaugg·Mark W. Sandstrom
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Abstract

In an intensive subcontimental study of pesticides in surface waters of the United States, concentrations of 26 high-use pesticides were measured at nine sites in the Mississippi River basin from May 1991 through March 1992. Calculated total fluxes were combined with agricultural-use data to estimate the percentage of applied pesticide reaching the mouths of the Mississippi River and six major tributaries. For most pesticides, the riverine flux was less than 2% of the mass applied agriculturally. The insecticide diazinon was detected frequently in rivers draining the three basins with the highest population densities, apparently as a result of urban use.

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90° N90° S · 180° W ← longitude → 180° E
Source-reported bounding extent: 28.8831596093235° to 49.03786794532644° latitude; -114.521484375° to -79.6728515625° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Steven J. Larson, Paul D. Capel, Donald A. Goolsby, Steven D. Zaugg, Mark W. Sandstrom. 1995. Relations between pesticide use and riverine flux in the Mississippi River Basin. https://doi.org/10.1016/0045-6535(95)00176-9

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