Her research program examines the tight coupling between human activities and reactive nitrogen distributions in atmosphere, terrestrial and aquatic systems at multiple spatial scales using stable isotope geochemistry. Dr. Elliott is the Director of the Regional Stable Isotope Laboratory for Earth and Environmental Science Research. Dr. Elliott is a Science & Engineering Ambassador of the National Academies of Sciences, Engineering, and Medicine and an NSF CAREER awardee. Prior to joining the Pitt faculty, she received her PhD at Johns Hopkins University (Geography & Environmental Engineering) and was a Postdoctoral Research Associate at the U.S. Geological Survey, Water Resources Division in California.