use lead extraction gold

A green process for extracting gold - New Atlas Foley believes that the method could also eventually be used in gold mining, which currently relies on toxic sodium cyanide for extraction. Pacemaker Lead Extraction Using Laser (Laser Lead ... In the past, lead extraction surgery involved placing a counterweight on the lead and gradually pulling it out. This often resulted in the lead breaking or damage to the surrounding heart tissue. UW Health surgeons and cardiologists now perform lead extraction surgery using special catheter-guided lasers. Living on Earth: Lead Poisoning from Gold Mining In the Nigerian state of Zamfara, a gold boom has led to a medical disaster with more than 400 children dead from lead poisoning and thousands sickened. Jane Cohen of Human Rights Watch tells host Bruce Gellerman why so many children were exposed.    Read More

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