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People in the Kroll Lab

Members of the Kroll Group (October 2014)
Front row: Kelly Daumit, Kelsey Boulanger, Jesse Kroll, James Hunter. Back row: Chris Lim, Anthony Carrasquillo, Jon Franklin, David Hagan, Ellie Browne, Eben Cross.


Jesse Kroll, Associate Professor

Education: A.B., Harvard 1996, Chemistry and Earth and Planetary Sciences; Ph.D., Harvard 2003, Chemistry
Contact: jhkroll @ mit.edu; (617) 253-2409; MIT Bldg 48-323

Jesse's interests lie in the chemical transformations that organic compounds undergo in the atmosphere. His graduate work focused on gas-phase reactions, and his postdoctoral work (at Caltech) on the formation of secondary organic aerosol (SOA). He was then a Senior Scientist at Aerodyne Research, Inc., developing and using mass spectrometric tools to characterize organic aerosol. He joined the MIT faculty in 2009.


Eben Cross, Research Scientist

Education: B.A., Connecticut College 2003, Environmental Chemistry; Ph.D., Boston College 2008, Physical Chemistry
Contact: escross @ mit.edu; MIT Bldg 48-305

Eben is interested in combustion emissions, specifically developing and applying mass spectrometric techniques to characterize biomass cookstoves and engine emissions to better inform the resulting air quality impacts of such activities. Eben joined the group in January of 2010, and now splits his time between Aerodyne Research and MIT.


Gabriel Isaacman-VanWertz, Postdoctoral Fellow

Education: B.A., Wesleyan College 2007, Chemistry and Earth & Environmental Science; Ph.D., UC-Berkeley 2014, Environmental Science, Policy, and Management
Contact: givw @ mit.edu; MIT Bldg 48-321

Gabriel's research focuses on characterizing the organic compounds in the atmosphere in both the gas and particle phase. He is working toward a better understanding of the fate of natural and anthropogenic emissions while they are processed and removed from the atmosphere. His graduate work centered on the development and application of new instruments and measurement techniques to study ambient mixtures in the field. Since joining MIT in 2015, he has used these methods and concepts to follow the transformation of organic compounds as they are oxidized in laboratory settings.


Rachel O'Brien, Postdoctoral Associate

Education: B.A., Grinnell College 2004, Chemistry; Ph.D., UC-Berkeley 2012, Chemistry
Contact: reobrien @ mit.edu

Rachel’s research focuses on characterizing spatial and temporal trends in atmospheric particulate matter as well as the organic and inorganic content lost from the atmosphere via wet deposition. Her graduate work at UC Berkeley primarily involved characterizing the chemical composition of atmospheric particulate matter using soft ionization and ultra-high resolution mass spectrometry. She also worked as a postdoc at Lawrence Berkeley National Lab and University of the Pacific looking at the physical properties and mixing states of individual aerosol particles using soft x-ray absorption spectroscopy at the Advanced Light Source at LBNL.


Jonathan Franklin, Graduate Student

Education: B.A., Connecticut College 2009, Chemistry
Contact: jpf @ mit.edu

Jon is interested in developing mass spectrometric methods for measuring semi-volatile organic compounds as well as understanding the evolution of particulate matter in oxygen free systems, such as the atmosphere of Saturn's moon Titan. Before joining the Kroll group in 2012, he worked as a research associate at Aerodyne Research Inc. on their mobile laboratory.


Mark Goldman, Graduate Student (co-advised by Bill Green)

Education: B.S., UT-Austin 2009, Chemical Engineering
Contact: goldmanm @ mit.edu

Mark is interested in studying mechanisms governing atmospheric oxidation of organic compounds. His work applies computational software to describe atmospheric conditions. He is developing Reaction Mechanism Generator software, which is primarily used to study high temperature reaction networks, to deal more accurately at lower conditions. Along with oxidation of gas phase particles, he also looks at how the oxidation products form into organic aerosols.


David Hagan, Graduate Student

Education: B.A., Hendrix College 2011, Chemical Physics; B.S., Washington University, Chemical Engineering
Contact: dhagan @ mit.edu

David’s current research focuses on the development of low-cost, low-power sensors to better characterize carbon-containing emissions. Prior to joining the Kroll group, he spent two years at Washington University in St. Louis developing the Volatility and Polarity Separator (VAPS).


Christopher Lim, Graduate Student

Education: B.S., UC-Berkeley 2009, Chemistry
Contact: cylim @ mit.edu

After graduating from Berkeley, Chris took a short break from school to work at Nanosys, a start-up that makes quantum dots for use in LED displays. He arrived at MIT in 2013 and is currently studying the role of multifunctional organic compounds in aerosol formation.


Josh Moss, Graduate Student

Education: B.S., UC-Berkeley 2014, Chemical Engineering
Contact: joshmoss @ mit.edu

Josh's research has focused primarily on determining whether current gas-particle partitioning models accurately describe atmospheric aerosol partitioning. Partially to this end, he has developed a simple model for identifying chemical properties of SVOC's using basic mass spectrometry. He is also very interested in better understanding the organic chemistry of the atmosphere, especially pertaining to aerosol formation and partitioning.


Rebecca Sugrue, Undergraduate

Education: B.S. expected 2017, MIT Civil and Environmental Engineering
Contact: rasugrue @ mit.edu

Rebecca is an undergraduate student working as a research assistant in the group. She works on chamber and flow tube studies on the formation and evolution of organic aerosols in the atmosphere. She was also a member of the 2016 Travel Research Environmental Experience group focusing on low-cost SO2 sensors and plume mapping on the Island of Hawaii.

Former members of the group

Contact: Prof. Jesse Kroll, MIT Departments of Civil and Environmental Engineering and Chemical Engineering, jhkroll @ mit.edu