00000nam 2200000za 4500 9.848470 CaOODSP 20241203113640 cr ||||||||||| 171208s1985 onca|||fob|||f000 0 eng d CaOODSP eng eng eng fre n-cn-on En13-5/85-87E-PDF Dickman, M. D. (Michael David), 1940- Effects of lake acidification on sediment bacteria, sediment diatoms and sulfur isotope downcore profiles [electronic resource] / by M.D. Dickman, S.S. Rao and H.G. Thode. Burlington, Ont. : National Water Research Institute, Canada Centre for Inland Waters, [1985]. 1 v. (various pagings) : ill. NWRI ; 85-87 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references: p. 33-37. "Sulphur isotope ratios are being used more and more to trace sources of sulphur in environmental studies. It has been shown recently that sulphur isotope ratios of lake water sulphates in remote areas reflect those of the annual bulk acid precipitation. There is also evidence that lake sediment chambre profile values will reflect environmental changes of the lake drainage basins over the past century. This study compares sediment downcore profiles of sulphur contents, sulphur isotope values, diatom inferred DH and microbiological populations from several lakes north of Lake Superior of which two are near and downwind from the Wawa sintering plant while others are more remote and upwind of the plant"--Exec. summary, Includes executive summary and abstract in English and French. gccst Sediments gccst Aquatic ecosystems gccst Lakes Thode, Harry, 1910-1997. Rao, S. S. (Salem S.), 1934- Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 85-87 (CaOODSP)9.844121 PDF 3.70 MB https://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-87-eng.pdf