摘要 : Since the beginning of North America's industrialization, the Great Lakes have been negatively impacted by the discharge of industrial, agricultural and munic- ipal pollutants. The governments of Canada and the United States have... 展开 Since the beginning of North America's industrialization, the Great Lakes have been negatively impacted by the discharge of industrial, agricultural and munic- ipal pollutants. The governments of Canada and the United States have recog- nized that the accumulation of pollutants within the bottom sediment and the water column has had a detrimental effect on the Great Lakes ecosystem. 收起