Why is rio virilla contaminated?

The Rio Virilla is contaminated primarily due to industrial discharges, improper waste management, and urban runoff. Factories along the river often release pollutants, while inadequate sewage treatment leads to untreated wastewater entering the waterway. Additionally, agricultural runoff contributes fertilizers and pesticides, exacerbating the pollution problem. These factors combined have resulted in significant ecological and health risks for the surrounding communities.