کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4426901 1309139 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Runoff of pesticides from rice fields in the Ile de Camargue (Rhône river delta, France): Field study and modeling
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Runoff of pesticides from rice fields in the Ile de Camargue (Rhône river delta, France): Field study and modeling
چکیده انگلیسی

A field study on the runoff of pesticides was conducted during the cultivation period in 2004 on a hydraulically isolated rice farm of 120 ha surface with one central water outlet. Four pesticides were studied: Alphamethrin, MCPA, Oxadiazon, and Pretilachlor. Alphamethrin concentrations in runoff never exceeded 0.001 μg L−1. The three other pesticides were found in concentrations between 5.2 and 28.2 μg L−1 in the runoff water shortly after the application and decreased thereafter. The data for MCPA compared reasonably well with predictions by an analytical runoff model, accounting for volatilization, degradation, leaching to groundwater, and sorption to soil. The runoff model estimated that runoff accounted for as much as 18–42% of mass loss for MCPA. Less runoff is observed and predicted for Oxadiazon and Pretilachlor. It was concluded that runoff from rice paddies carries important loads of dissolved pesticides to the wetlands in the Ile de Camargue, and that the model can be used to predict this runoff.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 151, Issue 3, February 2008, Pages 486–493
نویسندگان
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