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Aquatic characterization for resources at risk in Eastern Canada

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Abstract

To ascertain quantitative estimates of resources at risk for eastern Canada, linkage must be made between geological terrain sensitivity to acid deposition and water chemistry. An evaluation has been made of watershed areas principally in the Province of Quebec to identify and characterize factors related to LRTAP effects. The watershed areas are geographically located within the bounds of the high sulphate deposition zone of the continental plume. To identify specific test watersheds for detailed analysis, alkalinity frequency distributions were computed. A selection of watersheds has been made that spans the Pre-Cambrian shield region of the Laurentian highlands, the St. Lawrence lowlands and the Gaspé Peninsula. There is evidence that areas in the far eastern areas of Quebec, removed from strong anthropogenic sources may be considered as approaching critical levels of alkalinity. Ionic composition for selected watersheds display similar chemical characteristics for regions of diverse geology and soil characteristics. These differences have been assessed in light of the common effects of sulphate deposition.

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Authors and Affiliations

  1. Aquatic Physics and Systems Division, National Water Research Institute, Burlington, Ontario, Canada

    Andrew S. Fraser

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  1. Andrew S. Fraser
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Fraser, A.S. Aquatic characterization for resources at risk in Eastern Canada. Water, Air, and Soil Pollution 31, 1069–1078 (1986). https://doi.org/10.1007/BF00284252

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  • DOI: https://doi.org/10.1007/BF00284252

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