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Associate Research Scientist
Lamont-Doherty Earth Observatory
Comer 437
61 Route 9W - PO Box 1000
(845) 365-8629
(845) 365-8155


Fields of interest: 
environmental geochemistry, hydrogeology, groundwater contamination, CO2 geological storage, arsenic, uranium, radon, tracers

I currently work on developing tracers, including SF6, SF5CF3, PFCs, C, H, O staple isotopes, radiocarbon, and noble gases to quantify the transport and geochemical processes of injected CO2 in subsurface geologic formations at the CO2 storage sites. 

I have worked on the biogeochemical reactions of shallow aquifers in response to CO2 leakage from geological storage. The projects include: (1) conducting geophysical logging, pumping test, tracer test, CO2 push-pull experiment and geochemical modeling in bedrock aquifers to understand the mineral dissolution and trace element release rates; (2) investigating microbial activities and their impact on trace metal release; (3) carrying out sediment incubation experiments in the lab to investigate the biogeochemical reactions under abiotic and biotic conditions; (4) developing diagnostic monitoring systems to assess the risk of shallow aquifer contamination from CO2 leakage.

I have also worked on the hydrogeochemistry, risk assessment and treatment of contaminations in groundwater aquifers. The completed and ongoing projects include: (1) determining the occurrence and spatial pattern of arsenic contamination and its association with bedrock geology; (2) understanding the source and mobilization mechanisms of arsenic in bedrock aquifers from interpretation and statistical analysis on chemistry data; (3) testing the feasibility of predicting arsenic contamination in bedrock aquifers using logistic regression models; (4) examining the distribution of arsenic in groundwater, soil, and stream sediment at national, regional to local scales and their associations; (5) investigating the arsenic evolution in individual wells using borehole coring, logging , pumping test, and water sampling with packers; (6) investigating the occurrence, source and mobilization mechanisms of uranium and radon in bedrock aquifers; (7) promoting the well testing and treatment to reduce the public's exposure to contaminants and to improve community health. 

List of degrees from highest to lowest:
City University of New York
University of Science and Technology of China
University of Science and Technology of China

Selected Publications:

Microbial stimulation and succession following a test well injection simulating CO2 leakage into a shallow Newark Basin aquifer O’Mullan, G; Dueker, M; Clauson, K; Yang, Q; Umemoto, K; Zakharova, N; Matter, J; Stute, M; Takahashi, T; Goldberg, D. PLOS ONE (2015) 10.1371/journal.pone.0117812
Groundwater hydrogeochemistry in field injection experiments simulating CO2 leakage from geosequestration in a shallow aquifer in Newark Basin Yang, Q.; Matter, J.; Stute, M.; Umemoto, K.; Clauson, K.; Dueker, M. E.; O’Mullan, G.; Takahashi, T.; Zakharova, N.; Goldberg, D. International Journal of Greenhouse Gas Control Volume: 26 p.: 193-203 (2014)
Flow and sorption control of groundwater arsenic in individual boreholes from bedrock aquifers in central Maine, USA Yang, Q.; Culbertson, C. W.; Nielson, M.; Schalk, C.; Johnson, C.; Marvinney, R. G.; Stute, M.; Zheng, Y. Science of the Total Environment (2014)
Dissemination of well water arsenic results to homeowners in Central Maine: Influences on mitigation behavior and continued risks for exposure Flanagan, S. V.; Marvinney, R. G.; Johnston, R. A.; Yang, Q.; Zheng, Y. Science of the Total Environment (2014)
Uranium and Radon in Private Bedrock Well Water in Maine: Geospatial Analysis at Two Scales Yang, Q.; Smitherman, P. E.; Hess, C. T.; Culbertson, C. W.; Marvinney, R. G.; Smith, A. E.; Zheng, Y. Environmental Science & Technology Volume: 48 Issue: 8 p.: 4298-4306 (2014)
Enrichment of Arsenic in Surface Water, Stream Sediments, Soils and Rocks in Tibet Li, S.; Wang, M.; Yang, Q.; Wang, H.; Zhu, J.; Zheng, B.; Zheng, Y. Journal of Geochemical Exploration Volume: 135 p.: 104-116 (2013)
Can arsenic occurrence rates in bedrock aquifers be predicted? Yang, Q.; Jung, H. B.; Culbertson, C. W.; Marvinney, R. G.; Zheng, Y. Environmental Science & Technology Volume: 46 Issue: 4 p.: 2080-2087 (2012)
Spatial Pattern of Groundwater Arsenic Occurrence and Association with Bedrock Geology in Greater Augusta, Maine Yang, Q.; Jung, H. B.; Culbertson, C. W.; Marvinney, R. G.; Loiselle, M. C.; Locke, D. B.; Cheek, H.; Thibodeau, H.;Zheng, Y. Environmental Science & Technology 03/2009 Volume: 43 Issue: 8 p.: 2714–2719 (2009)