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MITIGATION OF ATRAZINE IN DRAINAGE DITCHES AND CONSTRUCTED WETLANDS FOR AGRICULTURAL NON-POINT SOURCE RUNOFF
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Pp. 486-493 in Total Maximum Daily Load (TMDL) Environmental Regulations–II Proceedings of the 8-12 November 2003 Conference (Albuquerque, New Mexico USA), Publication Date 8 November 2003. .
Authors: R. F. Cullum, M. T. Moore, S. S. Knight, and P. Rodrique
Keywords: Atrazine, drainage ditch, constructed wetlands
Atrazine was amended into an agricultural drainage ditch and constructed wetlands for the purpose of monitoring transport and fate of the pesticide. Aqueous half lives of 6 and 16 to 48 days in drainage ditch and constructed wetlands, respectively, were found. Flow paths of 50 m and 103 to 281 m were required to mitigate atrazine in the drainage ditch and constructed wetlands, repectively. This information provided design parameters for ditches and constructed wetlands to mitigate the herbicide in agricultural runoff.