The rivers that drain the metropolitan region of Porto Alegre show a strong degradation in water quality, particularly the Sinos River and the Gravataí River. According to IBGE (2013), these rivers are the 4th and 5th most polluted rivers in Brazil, respectively. Both of them are tributaries of Guaiba Lake. Considering so they contribute significantly to the loss of water quality of this important water body. The contamination of water sources by natural and anthropogenic substances puts in alert the capacity to maintain the balance of these ecosystems with the preservation of their functions, maintenance of aquatic life and the quality of noble uses, such as the abstraction of drinking water. The objective of this sub-project is to evaluate the ecotoxicological effects caused by these water bodies over embryos and fish larvae.
Sub-Project (In Progress): Ecotoxicological effects related to public supply water abstraction region at Porto Alegre.
Responsible: Alexandre Arenzon
Colaboration: Natalie Reichert Machado