Groundwater Methane Influenced by Surface Topography and Potential Sulfate-mediated Biogeochemical Processes in Shale Gas Development and Coal Mining Regions across Northern Appalachia

Yunpo Li1, Helen Siegel2, Nathalie Thelemaque1, Kathleen Bailey3, Priya Moncrieffe3, Timothy Nguyen3, Cassandra Clark4, Nicholaus P. Johnson5, Emma Ryan4, Kristina M Gutchess2, Rebecca Brenneis1, Mario Soriano Jr.2, Boya Xiong1, Nicole C Deziel4, James E Saiers2 and Desiree L Plata1, (1)Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, Cambridge, United States, (2)Yale University, the School of the Environment, New Haven, United States, (3)Massachusetts Institute of Technology, Cambridge, United States, (4)Yale University, School of Public Health, New Haven, CT, United States, (5)Yale University, School of Public Health, New Haven, United States