00000nam 2200000za 4500 9.848590 CaOODSP 20241203113640 cr ||||||||||| 171212s1985 mbca|||fob|||f000 0 eng d CaOODSP eng eng fre n-cn-sn n-cn-ab En13-5/85-107E-PDF Occurrence and pathways of toxic chemicals in the North Saskatchewan River [electronic resource] : final report to Toxfund on 1984-1985 activities, North Saskatchewan River Toxics Survey / E.D. Ongley ... [et al.]. Final report to Toxfund on 1984-1985 activities, North Saskatchewan River Toxics Survey Winnipeg, Man. : National Water Research Institute, Inland Waters Directorate, Environment Canada, 1985. 1 v. (various pagings) : ill. NWRI contribution ; 85-107 Caption title. "June, 1985"--cover. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "This survey is part of a continuing study of pathways and of ecotoxicological effects of toxic contaminants in the North Saskatchewan River and in Tobin Lake, the principal sink for suspended sediments of the Saskatchewan Basin. This research program, although managed by the National Water Research Institute (NWRI), is a shared program between the NWRI of Inland Waters Directorate and the Environmental Protection Service, Western & Northern Region. This program has broad relevance to toxic chemical management, both in terms of environmental sensing procedures and of control protocols in river and river lake systems in Canada. The immediate objective is to determine the pathways and significance of priority and unlisted toxic chemicals in water, suspended sediments, and to evaluate toxic effects through use of two different bioassay procedures (Ames and P.redivivus). By contrasting the pathways, chemistry and toxicological response in two different river regimes (high versus low flow), we expect to be able to make significant statements about new andmore cost—efficient methods for carrying out toxic chemical sensing in aquatic systems"--Exec. summary. Includes executive summary in French. gccst Toxic substances gccst Water pollution gccst Sediments Ongley, Edwin D. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 85-107 (CaOODSP)9.844121 PDF 3.67 MB https://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-107-eng.pdf