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Sensitivity of coastal waters to anthropogenic trace metal emissions
Yeats, P.A.; Bewers, J.M.; Walton, A. (1978). Sensitivity of coastal waters to anthropogenic trace metal emissions. Mar. Pollut. Bull. 9(10): 264-268. hdl.handle.net/10.1016/0025-326X(78)90608-2
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Yeats, P.A.
  • Bewers, J.M.
  • Walton, A.

Abstract
    Trace metal concentrations in the waters of the Gulf of St. Lawrence and the Scotian Shelf and their sensitivity to changes in the composition of the major contributor of fresh water, the St. Lawrence River, are assessed. Comparison of the levels of trace metals in eastern Canadian coastal waters with those in other coastal waters of the world reveals that the former area generally has lower trace metal concentrations and is, therefore, probably less contaminated than elsewhere. The increased anthropogenic activity in the St. Lawrence drainage basin required to increase the levels of trace metals in receiving coastal waters by detectable amounts is discussed. We demonstrate that faster and more reliable warning of changes due to anthropogenic activity will be revealed through river monitoring than through monitoring of coastal waters. Changes in the marine environment can then be assessed through a thorough understanding of the geochemical behaviour of trace metals in nearshore waters.

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