Sediments loaded with pesticides and fertilizers in water courses

Soybean field near the Yamaska

Many rivers, such as the Yamaska, suffer heavy agricultural pollution. Large quantities of sediments loaded with pesticides and fertilizers from the vast fields of corn and soy cultivated in this region run off into the tributaries of Lake Saint-Pierre. Agricultural practices will have to change significantly in the near future to improve water quality in these rivers and prevent Lake Saint-Pierre from filling with sediments and disappearing.

Philippe Manning
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