Group Members
UCLA Department of Atmospheric and Oceanic Sciences Paulson 


      Former Group Members

Won Sik Choi

Won Sik is a postdoctoral scholar from Seoul, Republic of Korea. He received his B.S. In Oceanography and M.S. In Environmental and Earth Sciences from Seoul National University. He later received his PhD from UC Davis. Won Sik’s current projects include transit oriented development and green city project. His hobbies include cooking, soccer and sleeping.

Postdoctoral Scholar

Group Members

Tiffany Charbouillot

Tiffany is a postdoctoral scholar from Feillens, France. She received her B.S. in chemistry, M.S. In inorganic, bio-organic and environmental chemistry and PhD from Blaise Pascal University. She is currently working reactive oxygen species produced from ambient aerosols. Her hobbies include guitar, piano, roller skating, hiking and photography.

Postdoctoral Scholar

Rodrigo Seguel

Rodrigo is a postdoctoral scholar from Santiago, Chile. He received his undergrad degree in environmental chemistry and his PhD in chemistry from the University of Chile.

Postdoctoral Scholar

Michelle Kuang

Michelle is a graduate student from San Diego. She received her B.S. In chemistry at UC San Diego. She currently is working on quantifying OH generation by ambient particulate matter and  investigating which components of PM is responsible for reactive oxygen specie generation. Her hobbies include reading, cooking and enjoying the local food and culture.

Graduate Student

David Gonzalez

David was born in Monterrey, Nuevo Leon, Mexico and grew up primarily in Pearland, Texas. He received a B.S. In Chemistry with a minor in Atmospheric and Oceanic Sciences from UCLA in 2012. David currently works on reactive oxygen species associated with urban aerosol particles. He is anticipated to begin work on aerosol optical properties. David’s interests include guitar, bass guitar, cooking, politics and public policy.

Graduate Student

Karen Bunavage

Karen grew up in the small town of Falls, located near Scranton in northeastern Pennsylvania. She graduated from Penn State University in 2012 with a B.S. in Meteorology, and she then chose to pursue graduate studies at UCLA in the Department of Atmospheric and Oceanic Sciences.  Her research primarily focuses on aerosol dispersion in street canyons within the Los Angeles area. In her free time, Karen enjoys cooking, shopping, traveling, and just relaxing.



Graduate Student

Hwajin Kim


Grazyna Ozechowska

Research Associate

Jet Propulsion Laboratory, Pasadena, CA


Zsuzsanna Marka

Research Associate

Columbia University, New York, NY


Dr. Ha Huang Nguyen       

Research Chemist

ChemTrace/Metron Technology

Freemont, CA


Myeong Hasson

Postdoctoral Scholar

Cal State Fresno


Alam Hasson        

Associate Professor, Chemistry

Cal State Fresno


Keith Kuwata        

Associate Professor, Chemistry

McAlester College


Jill Fenske

Senior Associate

Environ Corp.


Christophe Maris                



Zurich, Switzerland


Udo Krischke     

Senior Research Scientist

Fresinus Analytical Institute, Germany


Chuautemoc Arellanes


Environ Corp. Irvine, CA

Andy W. Ho

(Former undergraduate researcher)

Harvard University