00000nam 2200000zi 4500 9.880624 CaOODSP 20221107165825 m o d f cr bn||||||||| 191015s1978 bccab o f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc x7x7 En40-240/78-12E-PDF Brothers, D. E., author. Marine environmental assessment of Tasu Sound, British Columbia, June, 1977 / by D.E. Brothers. [West Vancouver, B.C.] : Fisheries and Environment Canada, Environmental Protection Service, Environmental Protection Branch, Pacific Region, 1978. 1 online resource (vi, 33 pages) : illustration, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Regional program report ; 78-12 "June, 1978." Digitized edition from print [produced by Environment and Climate Change Canada]. "In June, 1977, the Environmental Protection Service conducted an environmental survey to assess the effects of the unconfined discharge of mill tailings from Wesfrob Mines Limited into Tasu Sound, Queen Charlotte Islands, British Columbia. Tailings from the 6000 dry metric tons per day iron-copper dressing plant have been dischargedd directly to Tasu Sound since 1967. The survey program included: water column transmissibility profiles; phytoplankton productivity measurements; sediment and fauna sampling and analyses for heavy metals; deep benthic trawling; and an examination of the intertidal zone in the proximity of the outfall. This report presents the results of the survey and conclusions based upon these results"--Abstract, page i. Issued also in print format. Includes abstracts in English and French. gccst Coastal waters gccst Water quality gccst Sediments gccst Aquatic animals gccst Mining industry gccst Waste water Canada. Fisheries and Environment Canada. Canada. Environmental Protection Service. Pacific Region. Regional program report (Canada. Environmental Protection Service. Pacific Region) 78-12. (CaOODSP)9.879151 PDF 1.22 MB https://publications.gc.ca/collections/collection_2019/eccc/en40-240/En40-240-78-12-eng.pdf