00000nam 2200000zi 4500 9.873707 CaOODSP 20241203113649 m o d f cr ||||||||||| 190528e198906##oncd #ob f100 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/89-118E-PDF Marsalek, J., author. Evaluation of pollutant loads from urban nonpoint sources / by J. Marsalek. Burlington, Ontario : National Water Research Institute, Rivers Research Branch, Canada Centre for Inland Waters, June 1989. 1 online resource (8 pages) : graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 89-118 "RRB-89-49." Title from cover. Digitized edition from print [produced by Environment and Climate Change Canada]. "This manuscript has been prepared for the International Association on Water Pollution Research and Control Conference." Includes bibliographical references. "In preparation of remedial action plans for areas of environmental concern in the Great Lakes Basin, the magnitude of pollutant contributions from point as well as nonpoint sources need to be assessed. For screening evaluations of urban nonpoint source pollution, a statistically-based method was applied in one of the areas of concern. This method computes the annual pollutant load as a product of the annual runoff and the mean pollutant concentration derived from a lognormal distribution of concentrations. Approximate confidence intervals can be determined for the mean concentration and used to compute confidence intervals of the loads. For the conditions studied, the probabilistic method produced load estimates which were sufficiently accurate for comparisons of pollution sources and formulation of the remedial strategy"--Abstract, page 1. Includes abstract and management perspective in English and French. gccst Water pollution gccst Urban environment gccst Assessment Canada. Environment Canada. National Water Research Institute (Canada). Rivers Research Branch. Canada Centre for Inland Waters. NWRI contribution ; 89-118. (CaOODSP)9.844121 PDF 1.27 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-89-118-eng.pdf