00000nam 2200000zi 4500 9.871147 CaOODSP 20241203113647 m o d f cr ||||||||||| 190404s1995 oncd #ot f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- En13-5/95-68E-PDF Ng, H. Y. F., author. Atrazine and metolachlor losses in transient runoff events from an agricultural watershed / H.Y.F. Ng and S.B. Clegg. [Burlington, Ontario] : National Water Research Institute = Institut national de recherche sur les eaux, [1995] 1 online resource (19 pages) : charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 95-68 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Losses of atrazine and metolachlor were monitored in transient runoff events at the outlet of an agricultural watershed. The streamflow hydrographs were decomposed into surface runoff, interflow, and baseflow. The majority of losses of the applied herbicides occurred in surface runoff and interflow. The combined losses in surface runoff and interflow accounted for up to 75% of atrazine and 65% of metolachlor, of the total loss. Vast majority of the losses occurred within 70 days of the application and during a large storm event, shortly after herbicide application. Herbicide concentrations showed a steady disappearance with pseudo first-order half-lives 54 days for atrazine, and 50 days for metolachlor"--Abstract. gccst Watersheds gccst Herbicides Clegg, S. B., author. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; 95-68. (CaOODSP)9.844121 PDF 2.27 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-95-68-eng.pdf