Alumni

Past Members of the Kroll Group


Victoria Barber

Victoria Barber

Postdoctoral Researcher (2019-2023)

Education: B.S., Swarthmore College, 2013, Chemistry and Educational Studies; Ph.D., University of Pennsylvania 2019, Physical Chemistry


Research Topic: Chemistry of functionalized organic intermediates, automated mechanism generation, indoor air chemistry

Current Position: Assistant Professor, UCLA Department of Chemistry and Biochemistry


Kelsey Boulanger

Kelsey Boulanger

Masters Student (2012-2015)

Education: B.S., UC-Berkeley 2012, Civil and Environmental Engineering; S.M., MIT 2015, Civil and Environmental Engineering


Thesis Topic: Decadal trends in atmospheric organic aerosol

Current Position: Mathematics teacher, Matignon High School


Eleanor Browne

Eleanor Browne

Postdoctoral Researcher (2012-2015)

Education: B.S., The College of William and Mary 2006, Chemistry; Ph.D., UC-Berkeley 2012, Chemistry


Research Topic: Black carbon aging, aerosol measurement and characterization

Current Position: Assistant Professor, Dept. of Chemistry and Biochemistry, CU-Boulder


Anthony Carrasquillo

Anthony Carrasquillo

PhD Student (2009-2015)

Education: A.B., Bowdoin College 2007, Chemistry and Environmental Science; Ph.D., MIT 2015, Civil and Environmental Engineering


Thesis Topic: Formation and evolution of atmospheric organic matter from radical intermediates

Current Position: Assistant Professor, Chemistry Department, Williams College


Ben Crawford

Ben Crawford

Postdoctoral Researcher (2017-2019)

Education: B.S., U. Indiana 2003, Geography; Ph.D., University of British Columbia 2014, Geography


Research Topic: Low-cost sensors to measure volcanic air pollution

Current Position: Assistant Professor, University of Colorado - Denver


Eben Cross

Eben Cross

Postdoc/Research Scientist (2010-2015)

Education: B.A., Connecticut College 2003, Environmental Chemistry; Ph.D., Boston College 2008, Physical Chemistry


Research Topic: Measurement of S/IVOVCs, emission chracterization

Current Position: CEO, Quant-AQ, Inc.


Kelly Daumit

Kelly Daumit

PhD Student (2009-2015)

Education: B.S., Seattle University 2009, Chemistry; Ph.D., MIT 2015, Civil and Environmental Engineering


Thesis Topic: The role of aqueous-phase oxidation in the formation of highly-oxidized organic aerosol

Current Position: Chemistry teacher, Revere High School


Jonathan Franklin

Jonathan Franklin

PhD Student (2012-2018)

Education: B.A., Connecticut College 2009, Chemistry; Ph.D., MIT 2018, Civil and Environmental Engineering


Thesis Topic: Measurement and characterization of low volatility organic compounds in the atmosphere

Current Position: Associate, Analysis Group


Mark Goldman

Mark Goldman

PhD Student (2013-2019) , co-advised by Bill Green.

Education: B.S., UT-Austin 2013, Chemical Engineering; Ph.D., MIT 2019, Chemical Engineering


Thesis Topic: Illuminating reaction pathways in low-temperature combustion, pyrolysis and atmospheric oxidation

Current Position: Engineer, US Environmental Protection Agency


David Hagan

David Hagan

PhD Student (2013-2019)

Education: B.A., Hendrix College 2011, Chemical Physics; B.S., Washington University 2013, Chemical Engineering;; Ph.D., MIT 2019, Civil and Environmental Engineering


Thesis Topic: Measuring Ambient Air Quality Using Low-Cost Sensors

Current Position: CTO, QuantAQ


Amy Hrdina

Amy Hrdina

Postdoctoral Researcher (2019-2022)

Education: B.S., Carleton University 2008, Chemistry; M.Sc., Carleton Univesity 2010, Analytical Chemistry; Ph.D., University of Toronto 2019, Environmental Chemistry


Research Topic: Aging and toxicity of particulate PAHs

Current Position: Associate/Environmental Chemist, Gradient


James Hunter

James Hunter

PhD Student (2009-2015)

Education: B.S., UC-Berkeley 2009, Chemistry; Ph.D., MIT 2015, Civil and Environmental Engineering


Thesis Topic: Oxidation of atmospheric organic carbon

Current Position: Technical instructor, Dept. of Materials Science and Engineering, MIT


Gabriel Isaacman-VanWertz

Gabriel Isaacman-VanWertz

Postdoctoral Researcher (2015-2017)

Education: B.A., Wesleyan College 2007, Chemistry and Earth & Environmental Science; Ph.D., UC-Berkeley 2014, Environmental Science, Policy, and Management


Research Topic: Comprehensive characterization of organic carbon during oxidative aging

Current Position: Associate Professor, Dept. of Civil and Environmental Engineering, Virginia Tech


Sean Kessler

Sean Kessler

PhD Student (2008-2013)

Education: B.S., Lehigh 2009, Chemical Engineering; Ph.D., MIT 2013, Chemical Engineering


Thesis Topic: The aging of organic aerosol in the atmosphere: chemical transformations by heterogeneous oxidation


Abigail Koss

Abigail Koss

Postdoctoral Researcher (2017-2019)

Education: A.B., MIT 2012, Chemistry; Ph.D., CU-Boulder 2017, Analytical Chemistry


Research Topic: Comprehensive chamber studies of VOC oxidation

Current Position: Applications scientist, Tofwerk AG


Chris Lim

Chris Lim

PhD Student (2013-2019)

Education: B.S., UC-Berkeley 2009, Chemistry; Ph.D., MIT 2019 Civil and Environmental Engineering


Thesis Topic: Laboratory studies of the multiday oxidative aging of atmospheric organic aerosol

Current Position: Air Quality Specialist, South coast Air Quality Management District


Josh Moss

Josh Moss

PhD Student (2015-2021)

Education: B.S., UC-Berkeley 2014, Chemical Engineering


Thesis Title: Laboratory and Mechanistic Studies of Volatile Organic Carbon Oxidation Systems in the Atmosphere


Kevin Nihill

Kevin Nihill

Postdoctoral Researcher (2018-2021)

Education: B.S., Boston College 2011, Chemistry; Ph.D., University of Chicago 2017, Physical Chemistry


Research Topic: NOx dependence of product distributions, "total carbon" measurements

Current Position: Chemistry teacher, University of Chicago Laboratory High School


Rachel O'Brien

Rachel O'Brien

Postdoctoral Researcher (2015-2017)

Education: B.A., Grinnell College 2004, Chemistry; Ph.D., UC-Berkeley 2012, Chemistry


Research Topic: Characterization of atmospheric organics in fine particulate matter and rainwater

Current Position: Assistant Professor, Dept. of Civil and Environmental Engineering, University of Michigan


James Rowe

James Rowe

Masters Student (2017-2019)

Education: B.S., Georgia Tech 2017, Chemical Engineering; M.S., MIT 2019, Civil and Environmental Engineering


Thesis Topic: Laboratory study of the atmospheric heterogeneous oxidation of benzo[a]pyrene


Will Sharpe

Will Sharpe

Master of Engineering, 2022-2023

Education: B.S., UMD 2019, Aerospace Engineering


Thesis Topic: Low-cost and machine-learning techniques for aerosol measurement and characterization


Qing Ye

Qing Ye

Postdoctoral Researcher, 2019-2022

Website

Education: B.S., Sun Yat-sen University 2013, Environmental Science; Ph.D., Carnegie Mellon University 2019, Chemistry and Engineering and Public Policy


Research Topic: Atmospheric chemistry of reactive S and N

Current Position: Scientist, NCAR


Undergraduate Researchers

Isabel Albores

MSRP (2022) Development of a new oxidation flow reactor

Alice Zehner

UROP (2022) Long-timescale oxidation of OVOCs/td>

Argen Smith

UROP (2022) Studies of Organosulfur oxidation

Joy Domingo-Kameenui

UROP (2021-2022) Studies of the heterogeneous oxidation of PAHs

Andrea Naranjo-Soledad

MSRP (2018) Characterization of low-cost PM sensors

Natasha Ramos Padilla

MSRP (2017) Analysis of organic species in rainwater

Stephen Duncan

UROP (2017) Measurement of Total Organic Carbon via Catalyzed Oxidation

Mary Cunha

UROP (2016-2017) Roadside Measurements of Air Pollutant Emissions from Vehicles in an Urban Environment

Rebecca Sugrue

UROP (2014-2017) Investigating the role of increased temperature on the oxidation of organic compounds

Luke Verdi

UROP (2014) Optical Changes to Aerosol with Chemical Aging

Sidhant Pai

UROP (2013) Evolution of Volcanic Smog

Hao-Yu Derek Chang

UROP (2012-2014) IVOC analysis; Aerosol Concentration Trends

Zara L'Herueux

UROP (2012-2013) Volcanic Emissions; Building and evaluating low-cost PM sensors

Jaclyn Wilson

UROP (2012) Use of Historical Visibility Data to Understand Past Air Quality

Choolwe Mandona

MSRP (2012) Collection of water-soluble organic species in the aqueous phase

Phoebe Whitwell

UROP (2012) Development of a Low Cost Sensor for Measuring Atmospheric Particulate Matter

Abigail Koss

UROP (2012) Atmospheric fate of tetraethyl lead: incorporation in secondary organic aerosol

Anna Kelly

UROP (2012) Characterization of Aerosol Chemical Speciation Monitor Response to Volcanic Smog

Anika Gupta

UROP (2011) Kinetic Analysis of Secondary Organic Aerosols through Modeling and Construction of a Flow Reactor

Michael Desanker

UROP (2010-2011) Total Gas-Phase Organic Emissions

Melissa Pinard

MSRP (2010) Development of chamber techniques to simulate the oxidation of atmospheric organic compounds

Mary Zhang

UROP (2010-2011) Elemental Analysis of Secondary Organic Aerosol Component Ratios

Ashley Raynal

UROP (2009-2010) Chemical Composition of Fine Particles Produced From Wood and Biomass Burning

Katherine Eve

UROP (2009) Using a flow tube reactor to observe the formation and evolution of atmospheric aerosols

Past group photos


2022 Group Photo

Members of the Kroll Group (Summer 2023)

from left: Lesly Franco, Jesse Kroll, Matthew Goss, Tori Barber, Erik Helstrom, Nadia Tahsini, Lexy LeMar, and Amanda Gao Not shown: Hannah Kenagy (on vacation)


2022 Group Photo

Members of the Kroll Group (Spring 2022)

from left: Lexy LeMar, Matthew Goss, Amy Hrdina, Hannah Kenagy, Tori Barber,

David Gonzalez (special guest), Nadia Tahsini, Erik Helstrom, Amanda Gao, Lesly Franco

Not shown: Jesse Kroll (out sick)


2020 Group Photo

Members of the Kroll Group (2020)

Top row: Erik Helstrom, Jesse Kroll, Amy Hrdina, Matthew Goss.

Middle row: Josh Moss, Tori Barber, Qing Ye, Lesly Franco

Bottom row: Kevin Nihill, Drew Meyers, Amanda Gao


2019 Group Photo

Members of the Kroll Group (2019)

Front row: Mark Goldman (wrenches and pipe), Amanda Gao (copper tubing), Kevin Nihill (big wrench), Jesse Kroll (fan).

Back row: Qing Ye (spray bottle), David Hagan (dust-removing spray), Josh Moss (big saw), James Rowe (pipe wrench).


2016 Group Photo

Members of the Kroll Group (2016)

Mark Goldman, Jon Franklin, Gabriel Isaacman-VanWertz, Jesse Kroll, Rachel O'Brien, David Hagan, Chris Lim, Rebecca Sugrue, Josh Moss



2014 Group Photo

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.


2012 Group Photo

Members of the Kroll Group (October 2012)

Jesse Kroll (mallet), James Hunter (cordless drill), Sean Kessler (umbrella), Kelly Daumit (squirt bottle), Jon Franklin (???), Eben Cross (respirator), Anthony Carrasquillo (pipet), Kelsey Boulanger (wrench), Ellie Browne (canned air).


2012 Group Photo

Members of the Kroll Group (October 2011)

Eben Cross (filter), Anthony Carrasquillo (flashlight), Sean Kessler (solvent bottle), Kelly Daumit (inverter), James Hunter (wrench), Jesse Kroll (cordless drill).