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Transport models for the coastal pollution problems in the Great Lakes

Y.R. Rao, C.R. Murthy

Abstract


This paper utilizes a combination of physical limnological data and two types of transport models for predicting the fate and transport of material in Lake Ontario. In the first application a near-field model combined with a lake model is used to predict the waste plume characteristics for a proposed outfall in Lake Ontario. The outfall model results show that for treated effluents the near-field dilution ratios are satisfactory for the present discharge conditions. Far-field simulations showed no contamination near the existing Hamilton and Burlington water intakes. In another example, the transport and compartmental distribution of chlorinated benzenes in the Niagara River bar area were simulated using a two-dimensional model that combines coastal physical processes with a chemical partitioning sub-model. The Niagara River plume model demonstrated its applicability in the nearshore for short-term prediction of fate and transport of toxic chemicals in the coastal zone.

Keywords


Modelling, Great Lakes, Outfall, River plume

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