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008171208s1985    onca|||fob|||f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|beng|bfre
043 |an-cn-on
0861 |aEn13-5/85-87E-PDF
1001 |aDickman, M. D. |q(Michael David), |d1940-
24510|aEffects of lake acidification on sediment bacteria, sediment diatoms and sulfur isotope downcore profiles |h[electronic resource] / |cby M.D. Dickman, S.S. Rao and H.G. Thode.
260 |aBurlington, Ont. : |bNational Water Research Institute, Canada Centre for Inland Waters, |c[1985].
300 |a1 v. (various pagings) : |bill.
4901 |aNWRI ; |v85-87
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references: p. 33-37.
5200 |a"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,
546 |aIncludes executive summary and abstract in English and French.
69207|2gccst|aSediments
69207|2gccst|aAquatic ecosystems
69207|2gccst|aLakes
7001 |aThode, Harry, |d1910-1997.
7001 |aRao, S. S. |q(Salem S.), |d1934-
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|vno. 85-87|w(CaOODSP)9.844121
85640|qPDF|s3.70 MB|uhttps://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-87-eng.pdf