Brazil tackles illegal miners, but finds their mercury legacy harder to erase
In 2015, researchers in Brazil started a project to address a tricky challenge: Reducing exposure to mercury contamination in the region of the Tapajós River, a major tributary of the Amazon. Artisanal miners use the heavy metal to separate gold from ore, then burn it off. The waste mercury then ends up in the air, […]
Source: mongabay.com