![Fracking link suspected in presence of cancer-causing gas – report Fracking link suspected in presence of cancer-causing gas – report](https://mtic.us/wp-content/uploads/2015/04/2.si_-310x168.jpg)
The presence of a radioactive, cancer-causing element has increased in parts of Pennsylvania where hydraulic fracturing, or fracking, has been on the rise in recent years, according to a new study.
Researchers with Johns Hopkins Bloomberg School of Public Health said this week they’ve discovered a correlation between radon levels and fracking across the Keystone State.