00000nam 2200000zi 4500 9.895294 CaOODSP 20221107174002 m o d f cr |n||||||||| 201008s1987 sncdb ob f|0| 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-nu En37-221/1987E-PDF Gregor, Dennis J., 1949- author. Chemical characteristics of lakes in the Truelove Lowlands, Devon Island, Northwest Territories / by Dennis J. Gregor and Wm. D. Gummer. Regina, Saskatchewan : Environment Canada, Conservation and Protection = Environnement Canada, Conservation et Protection, 1987. 1 online resource (v, 32 pages) : charts, map text txt rdacontent computer c rdamedia online resource cr rdacarrier Digitized edition from print [produced by Environment and Climate Change Canada]. "September 1987." Includes bibliographical references (pages 23-24). "A unique opportunity was provided in 1985 to obtain characterization of the chemistry of surface waters of Truelove Lowlands, Devon Island, Northwest Territories. The ionic composition of seven lakes in the lowlands are described and discussed as regards their sensitivity to acidic deposition. A comparison of field and laboratory analyses is made drawing attention to possible inaccuracies in technology and/or the change in sample integrity over time. Metal residue concentrations in water, lake sediment and snow are presented and reference is made to efforts to collect and quantify organochlorine residues in freshwater shrimp (Lepidurus sp.). Sediment samples from the lakes are described with respect to metal concentrations and their toxicity to a mixed culture phytoplankton population"--Abstract. Includes abstracts in English and French. Water chemistry Nunavut Devon Island. Limnology Nunavut Devon Island. Eau Chimie Nunavut Devon, Île. Limnologie Nunavut Devon, Île. Canada. Environment Canada. Conservation and Protection, issuing body. Canada. Inland Waters Directorate. Western and Northern Region, issuing body. PDF 1.37 MB https://publications.gc.ca/collections/collection_2021/eccc/en37/En37-221-1987-eng.pdf