Toxicity persistence in runoff and soil from experimental soybean plots following insecticide applications

Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
Ariel ParacampoCarlos Bonetto

Abstract

Persistence of toxicity in runoff water and soil was investigated in experimental soybean plots subjected to successive runoff events following pesticide application. Runoff events were produced by irrigation using a sprinkler system. The pesticides applied were cypermethrin and endosulfan, which are widely used in soy production in Argentina. Toxicity tests were performed on two abundant components of the regional fauna, the amphipod Hyalella curvispina and the fish Cnesterodon decemmaculatus. Runoffs from two pesticide applications were assayed at different stages of the growing season: an early application when the soil was almost bare and a late one close to harvest, when the ground was covered by vegetation and just before soy leaves fell. Toxicity to H. curvispina in runoff ceased almost one month after the early application of the two pesticides, while it persisted for over three months after the late application. Soil toxicity to H. curvispina and runoff toxicity to C. decemmaculatus followed the same pattern. Higher temperatures and solar radiation are likely to have enhanced insecticide degradation after the early application. Lower temperatures and solar radiation in combination with increased organic matter from lit...Continue Reading

References

Jun 13, 2001·Journal of Environmental Quality·I R KennedyN Ahmad
Jul 23, 2002·Reviews of Environmental Contamination and Toxicology·Dennis A Laskowski
Jun 16, 2004·Archives of Environmental Contamination and Toxicology·S JergentzR Schulz
Jan 10, 2006·Bulletin of Environmental Contamination and Toxicology·D Marino, A Ronco
May 3, 2007·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·María L BallesterosMaría A Bistoni
Oct 22, 2008·Archives of Environmental Contamination and Toxicology·Fleur Pablo, Ross V Hyne

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Citations

Sep 2, 2016·Environmental Monitoring and Assessment·Marina SolisCarlos Bonetto
Nov 20, 2016·Integrated Environmental Assessment and Management·Katja KnauerInge Werner
Nov 15, 2020·Journal of Environmental Management·María Natalia MarrochiHernán Mugni

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