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Fracking linked to radioactive river water in Pa. River water in western Pennsylvania has elevated levels of radioactivity, some of it from fluids discharged after fracking for natural gas in the Marcellus Shale area, says a Duke University study Wednesday. Post to Facebook.
In addition to water contamination, some worry about the amount of water needed to frack a well. Fracking can also create small earthquakes if done along faults. But the big concern with earthquakes has come with the disposal of used frack water in deep injection wells.