Residents living near the Sarandí have long complained about pollution in the area

Archived version: https://archive.is/20250207143404/https://www.theguardian.com/weather/2025/feb/07/river-near-buenos-aires-turns-bright-red-after-suspected-industrial-dye-leak

Disclaimer: The article linked is from a single source with a single perspective. Make sure to cross-check information against multiple sources to get a comprehensive view on the situation.