The Elliott Lab
Our 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. For more information, see "Research".
Regional Stable Isotope Laboratory for Earth and Environmental Science Research
University of Pittsburgh Mobile Air Quality Research Laboratory
Elliott Laboratory News Archive
U.S.-Japan Joint Seminar on Catchment Hydrology and Forest Biogeochemistry
7/7/13: Manuscript accepted describing a new methodological approach for isotopic analysis of low concentration ambient ammonia samples. The paper, "Characterizing the isotopic composition of atmospheric ammonia emission sources using passive samplers and a combined oxidation-bacterial denitrifier approach" is in press at Rapid Communications in Mass Spectrometry and was led by J. David Felix.
6/26/13: Our urban nitrogen research in Nine Mile Run is highlighted in the Academic Minute podcast sponsored by WAMC Northeast Public Radio. The podcast can be accessed here.
5/24/13: New paper published on the influence highways on reactive nitrogen distributions. The article titled "Highway contributions to reactive nitrogen deposition: Tracing the fate of vehicular NOx using stable isotopes and plant biomonitors" was published in Biogeochemistry and led by Katie Redling.
4/25/13: New results published on the historical influence of fertilizer application to Greenland nitrate deposition. The article titled "The agricultural history of human-nitrogen interactions as recorded in ice core d15N-NO3" was published in Geophysical Research Letters and led by former lab member, J. David Felix.
4/10/13: Undergraduate researcher, Mollie Kish, awarded a Brackenridge Summer Research Fellowship. The Fellowship will support Mollie's research documenting rates of urban bulk nitrogen deposition in Nine Mile Run.
3/18/13: Research results from Nine Mile Run in Pittsburgh, PA are featured in the online journal, Atlantic Cities. The article, "It's Not Just Overflow—Everyday Leaks From Sewer Systems Lead to Alarming Amounts of Sewage in Our Waterways" can be accessed here.
3/9/13: Dr. Elliott and Lucy Rose return from the 4th U.S.-Japan Joint Seminar on Responses of Catchment Hydrology and Forest Biogeochemistry to Climatic and Environmental Change in Honolulu, Hawaii. Dr. Elliott, a co-convener of the NSF-funded conference, attended the meeting with Lucy Rose who presented a poster on her recent results "Biogenic and anthropogenic NOx contributions to precipitation nitrate".
2/13/13: Dr. Elliott receives an NSF CAREER award for her proposal "Air-ecosystem-water interactions of reactive nitrogen in urban systems" from the Hydrologic Sciences directorate.
1/29/13: Marion Divers publishes a paper published in Environmental Science & Technology entitled "Constraining nitrogen inputs to urban streams from leaking sewer infrastructure using inverse modeling: Implications for DIN retention in urban environments".
1/09/13: Dr. Elliott awarded Honorable Mention for the 2013 Carnegie Science Awards in the Environmental category.