What are some of the biggest contributors to the pollution of the great lakes?



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    Nonpoint source pollution affects the Great Lakes most readily, namely runoff from farms that contains chemicals and discharges from factories. Additionally, because the lakes have a large surface area, it leaves them exposed to chemicals in the atmosphere that may come down in the form of precipitation. Because the Lakes’ outflow is low, pollutants are easily introduced to the system and they can stay there for a long time, even building up as time goes on.

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