Atmospheric deposition rates of 90 Sr and analysis of soil samples from non-eroded sites indicated base levels of total soil 137 Cs were approximately 2700 Bq m −2 in southern Ontario in 1985. Measured 137 Cs losses (1965–1976) from long-term runoff plots were significantly correlated to measured soil losses during the same period. Monitoring temporal changes in soil 137 Cs should be an accurate method of estimating soil loss in southern Ontario.
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R. G. Kachanoski (1987) studied this question.