00000nam 2200000zi 4500 9.870313 CaOODSP 20241203113647 m o d f cr ||||||||||| 190321e198708##oncbd #ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre En13-5/87-132E-PDF Jeffries, Dean Stuart, author. Aluminum geochemistry at the catchment scale in watersheds influenced by acidic precipitation / by Dean S. Jeffries and William H. Hendershot. Burlington, Ontario, Canada : National Water Research Institute, Canada Centre for Inland Waters ; Ste-Anne-de-Bellevue, Quebec, Canada : Department of Renewable Resources, Macdonald College of McGill University, August, 1987. 1 online resource (21 pages) : maps, graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 87-132 "RRB-87-49." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "The geochemistry of aluminum in surface and sub-surface waters is discussed for catchments affected by acidic deposition using, as examples, the Turkey Lakes Watershed (central Ontario, Canada) and the St. Hippolyte calibrated basins (southern Quebec, Ontario). The roles played by water pathways (i.e. hydrology) and soil chemistry in determining the concentration of aluminum in the waters are first summarized, followed by presentation of results from the 2 studies. Specifically, the spatial and temporal variability observed for total aluminum and its species in the waters is discussed, with particular attention being given to elucidating the biogeochemical factors present in each of the basins that can explain the variability. The springmelt episode is discussed in detail, since this period exhibits dramatic peaks in aluminum concentration that may be toxic to aquatic biota. Results from the 2 Canadian basins are placed in a geographically wider context through comparison with those reported for other basins in the United States, Scandanavia, and central Europe"--Abstract. Includes a management perspective and abstract in English and French. gccst Acid rain gccst Watersheds gccst Geochemistry Hendershot, William H., author. Canada. Environment Canada. Canada Centre for Inland Waters. Macdonald College. Dept. of Renewable Resources. National Water Research Institute (Canada) NWRI contribution ; 87-132. (CaOODSP)9.844121 PDF 3.26 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-87-132-eng.pdf