Pitt and Duquesne University researchers found radium downstream of wastewater treatment plants that treat runoff from landfills that accept frack waste.
Groups are suing to halt a new law that went into effect on April 7 that would accelerate gas drilling under state-owned lands, like parks, until new rules are in place.
State Sen. Bartolotta, a Washington County Republican, objected to the participation of the Center for Coalfield Justice and the Environmental Health Project.