00000nam 2200000zi 4500 9.881607 CaOODSP 20241203113653 m o d f cr ||||||||||| 191104e19870401bccbd ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-bc En57-45/87-1E-PDF Faulkner, D. A., author. The effect of a major emitter on the rain chemistry of southern British Columbia : a preliminary analysis. Part I / D. A. Faulkner. Vancouver, Canada : Scientific Services Division, Atmospheric Environment Service, Pacific Region, April 1, 1987. 1 online resource (iii, 31, 3, 3 pages) : maps, graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier Report PAES ; 87-1 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 25-26). "The ASARCO copper smelter in Tacoma, WA was a major emitter of sulphur dioxide and atmospheric arsenic prior to its closing in March 1985. Precipitation chemistry data collected from a network parallel to the US/Canada border in southwestern British Columbia were analyzed to determine changes in rain chemistry as a result of the closure. Significant decreases in arsenic concentrations were noted. Decreases in sulphate and nitrate concentrations were detected as well but it is not clear that these can be attributed to the smelter closure. Suggestions for future studies are offered"--Abstract. gccst Precipitation gccst Analysis Canada. Environment Canada. Canada. Atmospheric Environment Service. Pacific Region. Scientific Services Division. Report PAES ; 87-1. (CaOODSP)9.879827 PDF 5.32 MB https://publications.gc.ca/collections/collection_2019/eccc/En57-45-87-1-eng.pdf