To conduct the new study, the researchers collected and analyzed 44 samples of waters produced from conventional oil and gas wells in New York and Pennsylvania and 31 samples of flowback waters from hydraulically fractured shale gas wells in Pennsylvania and Arkansas. (sciencedaily.com)
It can expose people to harm from lead, arsenic and radioactivity brought back to the surface with fracking flowback fluid. (biologicaldiversity.org)
He noted that the hydraulic fracturing process lends itself to more leakage because it takes more time to drill the well, requires more venting and produces more flowback waste, he said. (news.cornell.edu)