The project that ends in March involves the National Centre of Excellence in Geology, University of Peshawar, Pakistan’s Higher Education Commission and the US Department of State. Significantly, it turned up evidence of extensive mercury contamination in the northern areas.
“Our research indicates high mercury concentrations in soils close to mining operations and particularly alarming contamination levels in people living around the Hunza river,” Khan says.
Mercury dissolves gold out of the ore, and when heated boils away leaving gold behind. Gold extraction using mercury continues along the banks of the Hunza, Gilgit and Indus rivers in the remote Gilgit-Baltistan region.
http://knowledge.agriculturemachinerybusiness.com/BeautifulHomeinAsia_52_8055_1.html
No comments:
Post a Comment