Peruvian Amazonia, informally known locally as the Peruvian jungle or just the jungle, is the area of the Amazon rainforest in Peru, east of the Andes and Peru's borders with Ecuador, Colombia, Brazil, and Bolivia. From Wikipedia
Cornell-led research confirms Ficus insipida trees as cost-effective biomonitors for tracking mercury emissions in the Peruvian Amazon, highlighting environmental and health risks from artisanal mining.