Top row: Holden Schoenherr, Corin Tyler, Janie (Yaesul) Kim, Adam Nix
Bottom row: Rachel O'Brien, Joe Berberich, Xu He, Willow Hwang
Education: B.A., Grinnell College 2004, Chemistry; Ph.D. UC Berkeley 2012, Chemistry
Contact: reobrien@umich.edu
Rachel's research interests include analysis of complex organic mixtures in the atmosphere and indoors. Her graduate work focused on characterizing secondary organic aerosol composition with ultra-high resolution mass spectrometry. In her first postdoc (LBNL) she imaged aerosol particles with soft x-rays and for her second postdoc (MIT) she used aerosol mass spectrometry to characterize transformations in aerosol particles and rainwater. She joined the W&M faculty in 2017 and then moved to the CEE department at UMich in Fall 2022. She enjoys reading, knitting, swimming, and hiking.
Education: B.S., Kyungpook National University, South Korea 2022, Oceanography
Contact: janieyk(at)umich(dot)edu
Janie studies biomass-burning organic aerosols (BBOA) from wildfires, focusing on how photolysis alters their chemistry during transport and after they arrive in urban areas. Her work investigates smoke films that form when particles deposit onto outdoor and indoor surfaces. Outside the lab, she enjoys running and the gym.
Education: B.S., North China University of Technology, China 2015, Engineering; M.S., Northeastern University, 2022, Environmental Engineering.
Contact: hexu(at)umich(dot)edu
Xu is currently characterizing organic aerosols collected during the AEROMMA field campaign in New York City in 2023. His future research will focus on specific classes of organic aerosols, particularly organonitrate species. Outside of research, he enjoys playing sports such as badminton and table tennis, working out, and cooking.
Education: B.A., Colgate University, 2024, Chemistry & Geography
Contact: joeberb(at)umich(dot)edu
Joe's current research investigates organic surface film extraction efficiencies in indoor and outdoor spaces. Future work will focus on quaternary ammonium compound (QAC) oxidative fates and reaction products in aerosol particles and surface interfaces relevant to indoor air exposure and pollution. He likes Michigan sports (football and hockey), playing board games, and cooking.
Education: B.S., U.S. Coast Guard Academy, 2022, Naval Architecture and Marine Engineering
Contact: arnix(at)umich(dot)edu & adam.r.nix(at)uscg(dot)mil
A sponsored student from the U.S. Coast Guard, Adam's research focuses on exploring aerosol emissions associated with the maritime industry and the AEROMMA campaign, specifically focusing on the measurement of potential bicarbonate from scrubber systems in urban aerosols. Adam acts as the lab's safety and environmental health point of contact. Outside of classes and research, he enjoys soccer, running and biking, 3D printing, classic literature, and tabletop miniatures games.
Education: Environmental Engineering Major
Contact: hwanghj(at)umich(dot)edu
Willow's research examines how outdoor urban surfaces, like plastics, influence the photolysis-driven aging of biomass-burning organic aerosol. In the future, she aims to compare BBOA extraction efficiency using different solvents and laboratory methods (sonication) to optimize sample preparation. Outside the lab, her hobbies include tennis, soccer, and drawing.
Education: Civil Engineering & Environmental Engineering Major
Contact: holdenws(at)umich(dot)edu
Holden's current research focuses on the characterization of complex indoor and outdoor surface films. He investigates how different processes, such as cleaning, cooking, and natural weather events, can impact the formulation of surface films. Outside of classes and research, he enjoys running, spending time with friends and family, cooking, and Michigan sports.
Education: Civil Engineering & Environmental Engineering Major
Contact: sareena(at)umich(dot)edu
Sareena is new to the lab and is very excited to get started! She hopes to investigate how air pollutants interact with artificial lung fluid. Outside of the lab, she enjoys spending time with her friends and family, as well as baking, reading and UM football
Education: Environmental Engineering Major
Contact: frenchjm(at)umich(dot)edu
Justin French is a rising junior who has worked on research investigating how non-thermal plasma technology reduces viral infectivity. His research interests include improving indoor and outdoor air quality, remediation work, and investigating the intersection of environmental engineering with public health and urban planning. Outside of classes, Justin enjoys swimming, hiking, music, and spending time with friends.