Study: 15 fracking chemicals may pose threat to groundwater
from University of Colorado-Boulder via Okron Beacon Journal
A new University of Colorado Boulder framework used to screen hundreds of organic chemical compounds used in hydraulic fracturing, or fracking, shows that 15 may be of concern as groundwater contaminants based on their toxicity, mobility, persistence and frequency of use. In the fracking process, a mixture of water, sand and various chemicals is pumped into wells at high pressure to create fissures in subterranean shale layers to release natural gas and oil. Oil and gas companies use a wide variety of chemicals to increase viscosity, inhibit equipment corrosion and reduce friction, among other things.
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