00000nam 2200000za 4500 9.848357 CaOODSP 20241203113640 cr ||||||||||| 171206s1985 oncb|||fob f000 0 eng d CaOODSP eng n-cn--- En13-5/85-63E-PDF A preliminary study of inorganic contaminants and water quality in the Welland River watershed [electronic resource] / K.R. Lum ... [et al.]. Burlington, Ont. : Environmental Contaminants Division, National Water Research Institute, Canada Centre for Inland Waters, [1985]. 11, [5] p. : map NWRI contribution ; 85-63 Title from cover. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references: p. 9-11. "Surface water was sampled once from ten locations in the Welland River watershed and were analysed for dissolved Cu» Zn, Pb, Cd, Chloride, Nitrate. Fluoride, Sulphate andbacterial counts. The IJC Water Quality Objectives for the protection of aquatic life were exceeded at nine of the sites for zinc. The IJC objective for the protection of aquatic life was exceeded at three of the sites for Cu. The stations on the Old Welland Canal Spillway were found to be the most contaminated. Concentrations of the four metals were well within the maximum allowable concentrations for drinkinq water for all samples. Concentrations exceeding the maximum allowable drinking water guidelines for nitrate were measured at five stations. Effluents in the Spillway and those which have already received treatment show poor water quality on the basis of their fecal coliform populations. Total loadings of contaminants, in particular Zn and Cu, from the Welland Canal and the Spillway to Lake Ontario would be expected to be significant"--Abstract. gccst Water quality gccst Watersheds gccst Pollutants Lum, K. R. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 85-63 (CaOODSP)9.844121 PDF 501 KB https://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-63-eng.pdf