A Computer Simulation of Water Quality change Due to Dredging of Heavy Metals Contaminated Sediments in the Old Harbour of Montreal

摘要

Aquatic sediments accumulate heavy metals that are discharged into the envi- ronment. This study investigates possible water quality changes due to release of heavy metals such as Cd, Ni, Zn and Pb into the water column during dredg- ing of anoxic sediments in the Old Harbour of Montreal. An environmental impact assessment of the sediment removal requires estimating the speciation of heavy metals in the water column with and without the solid phase.