00000nam 2200000zi 4500 9.880445 CaOODSP 20241203113652 m o d f cr bn||||||||| 191009e198511##bcca ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-bc En40-240/84-05E-PDF Derksen, George, 1948- author. Heavy metals in clastic stream sediments of the Yakoun River drainage and other B.C. streams / by George Derksen. [West Vancouver] : Department of the Environment, Environmental Protection Service, Pacific Region, November 1985. 1 online resource (viii, 62 pages) : illustrations (some colour). text txt rdacontent computer c rdamedia online resource cr rdacarrier Regional program report ; no. 84-05 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "A monitoring program was conducted to assess sediment heavy metal levels in the Yakoun River and tributary streams adjacent to a proposed gold mine property. Several other British Columbia streams were also sampled to establish a data base to compare to. Intergravel fine sediments from clastic stream beds typical of salmon spawning areas were effectively sampled with a stainless steel syringe sampler. Barbie Creek which drains the area surrounding the mine property had the highest overall mean mercury and arsenic concentrations compared to the other streams sampled by the syringe method. The results indicate that both seasonal differences and sampler methodology are important considerations when establishing baseline heavy metal sediment levels"--Abstract, page i. Includes abstract in French. gccst Sediments gccst Metals gccst Water management Canada. Environment Canada. Canada. Environmental Protection Service. Pacific Region. Regional program report (Canada. Environmental Protection Service. Pacific Region) no. 84-05. (CaOODSP)9.879151 PDF 2.61 MB https://publications.gc.ca/collections/collection_2019/eccc/en40-240/En40-240-84-05-eng.pdf