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| 02802cam 2200457zi 4500 |
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| 001 | 9.879337 |
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| 003 | CaOODSP |
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| 005 | 20221107165502 |
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| 006 | m o d f |
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| 007 | cr bn||||||||| |
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| 008 | 190916s1978 ykcb ob f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 041 | 0 |aeng|beng|bfre |
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| 043 | |an-cn-yk |
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| 045 | |ax7x7 |
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| 086 | 1 |aEn40-240/78-14E-PDF |
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| 100 | 1 |aPackman, Glen A., |eauthor. |
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| 245 | 10|aAssessment of the water quality and biological conditions in watersheds surrounding the United Keno Hill Mine, Elsa, Yukon, during the summers of 1974 and 1975 / |cby Environmental Protection Service, Yukon Branch. |
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| 264 | 1|a[Whitehorse, Yukon Territory] : |bFisheries and Environment Canada, Environmental Protection Service, Yukon Branch, Pacific Region, |c1978. |
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| 300 | |a1 online resource (v, 26 pages) : |bmaps. |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |aRegional program report ; |v78-14 |
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| 500 | |a"June 1978." |
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| 500 | |aWritten by: G. Packman. Confer Acknowledgements. |
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| 500 | |aErrata inserted. |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references (page 25). |
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| 520 | 3 |a"Surveys were conducted during the early summer of 1974 and 1975 at United Keno Hill Mines in the Yukon Territory. The parameters examined included water chemistry, trace metals, benthic species diversity, fish concentrations, and toxicity testing. The results indicated that zinc concentrations as high as 2.0 ppm were present in the waters of Flat Creek below the tailings pond decant, which was well above the Water Use Licence limit of 0.5 ppm. Copper, cadmium, and lead concentrations were found to be above the limits of the licence, intermittently. Benthic species diversity and fish density were reduced in Flat Creek below the tailings pond decant. Bioassay samples collected from the tailings pond decant were found to be toxic on 2 occasions out of 12 sampling times"--Abstract, page i. |
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| 530 | |aIssued also in print format. |
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| 546 | |aIncludes abstracts in English and French. |
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| 692 | 07|2gccst|aMining industry |
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| 692 | 07|2gccst|aWatercourses |
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| 692 | 07|2gccst|aWater quality |
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| 692 | 07|2gccst|aAquatic animals |
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| 710 | 1 |aCanada. |bFisheries and Environment Canada. |
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| 710 | 1 |aCanada. |bEnvironmental Protection Service. |bPacific Region. |bYukon Branch. |
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| 830 | #0|aRegional program report (Canada. Environmental Protection Service. Pacific Region)|v78-14.|w(CaOODSP)9.879151 |
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| 856 | 40|qPDF|s1.07 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en40-240/En40-240-78-14-eng.pdf |
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