By Jim Efstathiou Jr. – Oct 2, 2013 8:00 AM CT
Naturally occurring radiation brought to the surface by gas drillers has been detected in a Pennsylvania creek that flows into the Allegheny River, illustrating the risks of wastewater disposal from the boom in hydraulic fracturing.
Sediment in Blacklick Creek contained radium in concentrations 200 times above normal, or background levels, according to the study, published today in the journal Environmental Science and Technology. The radium, along with salts such as bromide, came from the Josephine Brine Treatment Facility about 45 miles (72 kilometers) east of Pittsburgh, a plant that treats wastewater from oil and gas drilling.
“The absolute levels that we found are much higher than what you allow in the U.S. for any place to dump radioactive material,” Avner Vengosh, a professor at the Nicholas School of the Environment at Duke University and co-author of the study, said in an interview. “The radium will be bio-accumulating. You eventually could get it in the fish.”
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