What can the discharge of mineral fertilizers into water bodies lead to? Why is the appearance of blue-green algae in them an alarming sign?

The appearance of mineral fertilizers in water bodies leads to an increase in the concentration of nutrients (nitrogen, sulfur, phosphorus, potassium, etc.), which contribute to the rapid development of algae, which leads to the transformation of water bodies into swamps. The appearance of blue-green algae is a sign of the beginning of pollution of the reservoir.

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