00000nam 2200000zi 4500 9.559970 CaOODSP 20230324133513 cr ||||||||||| 150406s2005 qucobd ob f000 0 eng d 0662421434 CaOODSP eng n-cn--- En153-114/4-2005E-PDF Rondeau, Bernard, 1962- author. Water quality in the fluvial section : contamination by toxic substances / prepared by: Bernard Rondeau. 2nd ed. Sainte-Foy, Quebec : Environment Canada, St. Lawrence Plan, 2005. 1 online resource (6 pages) : photos, maps, graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier Title from caption. Issued also in French under title: La qualité de l'eau du secteur fluvial : la contamination par les toxiques. Includes bibliographical references. "Urban development, industrial activities and farming have unleashed a massive load of toxic substances into our watercourses over the last century. These toxic inputs have contributed to degrading the water quality in the immense Great Lakes–St. Lawrence Basin, thus placing this unique ecosystem at risk"--Page 1. gccst Water quality gccst Environmental management gccst Rivers St. Lawrence Centre, issuing body. La qualité de l'eau du secteur fluvial (CaOODSP)9.592664 Water quality in the fluvial section (CaOODSP)9.835047 PDF 1042 KB https://publications.gc.ca/collections/collection_2008/ec/En153-114-4-2005E.pdf