Critical load of acidity to surface waters in South-central Ontario Canada I. Application of the Steady State Water Chemistry (SSWC) model
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The Steady-State Water Chemistry Model was applied to lakes in 5 regions in Ontario, Canada. Critical loads and exceedances calculated for the regions indicate that the portion of the lakes with exceedances dropped from 65-70% 20 years ago to 8-18% in the late 1990's. Detailed long-term information collected for 8 lakes was used to assess a number of the assumptions in the model.