Students compete with underwater robots they build themselves
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8 | Connecting Channels
St. Marys River: On this connecting channel between lakes Superior and Huron, critical pollutants include oils and greases, suspended solids, heavy metals and bacteria from several industrial sources along the river.
St. Clair River: Connecting lakes Huron and St. Clair, the shipping industry has been a primary source of pollution for the river.
Niagara River (New York and Ontario): Considered an AOC in both Ontario and New York, this connecting channel between lakes Erie and Ontario is polluted by several industrial facilities, runoff, and combined sewer overflows (CSOs).
St. Lawrence River (Massena, NY and Cornwall, Ont.): Located in both Massena, N.Y., and Cornwall, Ont., contaminants from past industrial waste handling practices have created several hazardous waste sites.