00000nam 2200000zi 4500 9.881673 CaOODSP 20241203113653 m o d f cr bn||||||||| 191104e199411##ykcb ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-yk En40-241/94-02E-PDF Mount Hundere baseline study, June 1988 and June 1990 / by Environmental Protection Branch, Yukon Division. Whitehorse, Yukon : Environment Canada, Environmental Protection Service, Pacific & Yukon Region, November 1994. 1 online resource (v, 21 pages, 50 unnumbered pages) : maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Regional data report ; DR 94-02 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 20). "Baseline investigations of environmental quality in the Mt. Hundere study area were carried out in June, 1988, and again in June 1990. These studies were in response to mineral exploration and eventual development of the Mt. Hundere (Sa Dena Hes) Lead/Zinc mine. The surveys investigated water quality, sediment chemistry and percent particle size distribution, and benthic invertebrates in the drainages surrounding the mineral development area. Extractable lead and zinc concentrations found in water samples were at maximum levels recommended for aquatic life. Stream sediment chemistry was comparable to sediment compositions found in other mineralized areas in the Yukon. Benthic invertebrate populations appeared significant in numbers and diversity compared with other recent surveys"--Abstract, page i. Includes abstracts in English and French. gccst Mining industry gccst Water quality gccst Aquatic ecosystems Canada. Environment Canada. Canada. Environmental Protection Directorate. Pacific and Yukon Region. Regional data report (Canada. Conservation and Protection) DR 94-02. (CaOODSP)9.880720 PDF 2.37 MB https://publications.gc.ca/collections/collection_2019/eccc/en40-241/En40-241-94-02-eng.pdf