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New tracers can identify fracking fluids

from EARTH Magazine

Hydraulic fracturing to harvest natural gas has been controversial due in large part to the potential for contamination of ground and surface waters by the pressurized fluids used to force open cracks in deep shale formations and by the so-called flowback fluids that re-emerge at the surface from fracking wells. Now, researchers have developed a geochemical method of tracing fracking fluids in the environment; it's a tool that could be used to identify hazardous spills in the future and may lead to better use and disposal of fracking wastewater. more


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