Since the price of gold spiked a few years ago, residents of Zamfara State in northern Nigeria have been digging homemade mines in and around their villages. Officials blame these unregulated operations for a lead poisoning outbreak that has killed hundreds of children, but activists say punishing miners will only deepen the health crisis.
http://www.voanews.com/content/nigeria-ponders-how-to-stop-gold-mining-poison/1529669.html
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