Two hazardous chemicals never before known as oil and gas industry pollutants – ammonium and iodide – are being dumped and spilled into Pennsylvania and West Virginia waterways from the booming energy operations of the Marcellus shale, a new study shows. Daily Climate, Jan. 14, 2015.
http://www.dailyclimate.org/tdc-newsroom/2015/01/fracking-fluid-waste