Rimac River Turns Dark: Pollution Concerns in Callao, Peru

Residents of Carmen de la Legua and San Martín de Porres in Callao, Peru, noticed an unusual change in the color of the Rimac River on Thursday, May 22, 2025. The water turned a dark, almost black color, raising concerns about potential pollution. "It's the first time I've seen it like this," said one resident, who walks by the river daily. Authorities from the National Water Authority (ANA) responded immediately, collecting water samples to analyze. The ANA confirmed on their X account that they are investigating the cause of the discoloration and will provide a technical report to the relevant authorities. While the exact cause remains undetermined, this incident highlights the importance of environmental monitoring and responsible waste management in the area.