Natalie Pekney, Ph.D. is an environmental engineer on the geo-analysis and monitoring team in the Geological and Environmental Systems Directorate of the U.S. Department of Energy National Energy Technology Laboratory in Pittsburgh, PA.  Natalie currently conducts air quality research as it pertains to fossil energy production and use.  She is the technical portfolio lead for the Undocumented Orphaned Wells program, which aims to develop tools and technologies for finding and characterizing undocumented orphaned wells.  She leads a technical team focused on quantifying emissions from components and processes within the natural gas system as part of NETL's Natural Gas Infrastructure Program.  Under NETL's National Emissions Reduction Initiative, she is researching emissions measurement approaches and the emissions distribution from marginally-producing oil and gas wells.  She has expertise in direct emissions measurements, regional ambient air quality monitoring, source-receptor modeling, plume dispersion modeling, concentration surveying and mapping techniques, and optical gas imaging.  She received her B.S. in Civil Engineering from Case Western Reserve University in Cleveland, Ohio and a M.S. and Ph.D. in Civil and Environmental Engineering from Carnegie Mellon University in Pittsburgh, Pennsylvania.