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Concentrations of total dissolved solids and total alkalinity of 310 Ontario waters varied according to the glacial history of the region. Concentrations were lowest in waters in the Precambrian Shield Region, moderately high in the Region of Extinct Pleistocene Lakes, and highest in the Region of Past Marine Submergence. Concentrations also varied seasonally and spatially within a lake or watershed. A positive relationship was found between total dissolved solids and total alkalinity.
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R. A. Ryder (1964) studied this question.
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