00000000nam 2200000zi 4500
0019.872524
003CaOODSP
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006m     o  d f      
007cr bn|||||||||
008190506s1998    onca    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn-ns
0861 |aEn13-5/98-149E-PDF
1001 |aWong, Henry K. T., |eauthor.
24510|aMetal pollution, transport and toxicity from abandoned gold mine tailing(s) at Goldenville, Nova Scotia / |cby H.K.T. Wong and A. Gauthier.
264 1|a[Ottawa] : |bEnvironment Canada, Water Science and Technology Directorate = Environnement Canada, Direction générale des sciences et de la technologie, eau, |c[1998]
300 |a1 online resource (18 pages, 5 unnumbered pages) : |billustrations.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aNWRI contribution ; |v98-149
500 |aCover title.
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references.
5203 |a"Approximately 3 x 10⁹ kg of relic gold mine tailings is the result of gold mining activities in the Goldenville area of Nova Scotia from 1860 to 1945. Mercury amalgamation was the primary method used for gold recovery. Tailings were distributed over time across a stream basin forming a tailing field of approximately 2 km². Metal content in stream waters, stream and lake sediments, tailings, suspended particulates and lower vegetation in the area was determined and their toxicity Results indicated continuous release of As, Hg, Pb, Tl and other metals (Cd, Cu, Fe, Mn, Ni, V, Zn) being released from the tailing field and their transport downstream. Sedimentary records showed increasing fates of metal deposition which corresponds to increasing rates of release from the tailings. Stream waters and lake sediments downstream from the mine were found toxic to the benthic community. A loss of fish habitat was observed"--Abstract.
69207|2gccst|aWater pollution
69207|2gccst|aPollutants
69207|2gccst|aToxicology
7001 |aGauthier, A., |eauthor.
7101 |aCanada. |bEnvironment Canada.
7101 |aCanada. |bWater Science and Technology Directorate.
7101 |aCanada. |bEnvironment Canada. |bAtlantic Region. |bEnvironmental Protection Branch‏.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|v98-149.|w(CaOODSP)9.844121
85640|qPDF|s1.40 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-98-149-eng.pdf