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008190110s1986    oncd    ot   f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn-on
0861 |aEn13-5/86-75E-PDF
1001 |aNriagu, Jerome O., |d1942-
24510|aWhat fraction of the total metal flux into lakes is retained in the sediments? |h[electronic resource] / |cby Jerome 0. Nriagu and Henry K.T. Wong.
260 |aBurlington, Ont. : |bNational Water Research Institute, |c[1986]
300 |a11 p. : |bcharts
4901 |aNWRI contribution ; |vno. 86-75
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographic references : p. 5.
5203 |a"The concentrations of, and deposition rates for, the pollutant metals (Pb, Cu, Zn, Ni, and Cd) and the rare earth elements are reported for the sediments and settling particulatesin a large, remote lake (Lake Opeongo) in the Algonquin Provincial Park, Ontario. Using a mass conservation model based on the rare earth elements, it is estimated that only 40-60% of pollutant metals getting into the lake is retained by the sediments. The low retention rate may explain the widely reported intra-basin and intra-lake differences in metal contents of sediments and casts some doubt on the use of pollutant metal profiles in retrospective assessment of the human contribution to the metal flux into many lake basins"--Abstract, p. 1.
546 |aText in English, abstracts in English and French.
69207|2gccst|aWater management
69207|2gccst|aWater quality
69207|2gccst|aSediments
7001 |aWong, Henry K. T.
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|vno. 86-75.|w(CaOODSP)9.844121
85640|qPDF|s929 KB|uhttps://publications.gc.ca/collections/collection_2019/eccc/En13-5-86-75-eng.pdf