A three-year project to study gold ore in Pakistan’s northern areas in
collaboration with the US has discovered new deposits of the yellow
metal as well as concentrations of toxic mercury spilling into the environment from primitive extraction methods.
“During research for the US-Pakistan ‘gold mineralisation’ project,
hyper-spectral remote sensing and geo-chemical analyses were used
besides field work,” says Shuhab Khan, associate professor of geology at
the University of Houston.
http://www.scidev.net/south-asia/health/news/gold-panning-leaves-toxic-mercury-trail-in-pakistan.html
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