Mercury used in illegal gold mining flows through Amazon rivers, accumulates in fish, and enters human bodies. Mongabay Latam reveals the extent of mercury contamination across hundreds of Indigenous and riverside communities in Peru, Bolivia, and Brazil. A new data analysis measures mercury contamination along 2,763 kilometers of the Madre de Dios, Beni, and Madeira rivers. 🧵 👉️ https://mongabay.cc/oiG795