Group Members

Principal Investigator

Qi Zhang, PhD


Professor, Department of Environmental Toxicology, University of California at Davis

Chair of the Agricultural and Environmental Chemistry Graduate Group at UC Davis


Address: 4251A Meyer Hall, 1 Shields Ave., Davis, CA 95616


Tel:    (530) 752-5779 (Office), (530) 752-2541 (Lab)


Email: dkwzhang@ucdavis.edu


Graduate groups memberships:

   Agricultural and Environmental Chemistry

   Atmospheric Science

   Pharmacology and Toxicology

Postdoctoral Scientist

Wenqing Jiang


Education:

Ph.D., Agricultural and Environmental Chemistry, 2022

M.S. in Pesticide Sciences, China Agricultural University, 2015

B.S. in Chemistry, China Agricultural University, 2012


Research:

- Aqueous-phase chemistry of atmospheric organic aerosols  

- Chemical characterization, source apportionment, and condensed phase reactions of atmospheric brown carbon aerosols


Email: gwqjiang@ucdavis.edu

Graduate Students

Ryan Farley


PhD candidate, Agricultural and Environmental Chemistry, 2018 - present


Education:

B.A., in Chemistry, Vassar College, 2017


Research: 

 - Atmospheric processing of biomass burning organic aerosols

 - Atmospheric aging, aqueous-phase processing, and sources of black carbon aerosols


Email: rnfarley@ucdavis.edu 

Christopher Niedek


PhD candidate, Agricultural and Environmental Chemistry, 2019 - present


Education:

B.S. in Chemistry, University of Detroit Mercy, 2017


Research:

- Development of a real-time auto-calibration procedure for the aerosol chemical speciation monitor

- Improvement of offline data acquisition techniques for aerosol mass spectrometry

Email: crniedek@ucdavis.edu 

Justin Trousdell


PhD student, Atmospheric Science, 2021 - present


Education:

B.S. Applied Physics w/ concentration on Atmospheric Physics, UC Davis

M.S. Atmospheric Science, UC Davis


Research:

Current research is focused on evaluating the impact of the San Joaquin Valley Air Quality District's Rule 4901 for curtailment of residential wood burning during winter high PM events. The analysis includes positive matrix factorization of AMS data collected in Fresno, California and a suite of other chemical data including commonly used biomass burning tracers.


Email: jftrousdell@ucdavis.edu 

Undergraduate Researcher

Yuejun Zhou


Applied Chemistry, UC Davis, 2020 - present


Research:

Aqueous phase chemical reactions of biomass burning organic gases. 


Email: yjnzhou@ucdavis.edu 

Ryan Katz


Forensic Chemistry, UC Davis, 2021 - present


Research:

Chemical and toxicological analysis of atmospheric particulate matter using advanced analytical techniques 


Email: rjkatz@ucdavis.edu 

Alumni

Heidi Hoi-Yan Cheung

visiting student, 2014 - 2015


Education:

Ph.D. student, Environmental Science, Policy and Management, Hong Kong University of Science and Technology, 2011 - present

B.Eng. in Chemical Engineering, Hong Kong University of Science and Technology, 2011


Email: cheunghy.heidi@gmail.com

Sonya CollierPostdoctoral Scholar, 2011 - 2017

Education:

PhD Mechanical Engineering, University of Southern California, 2009

B.S. Astronautical Engineering, University of Southern California, 2003

Current affiliation:  Air Resources Engineer, California Air Resource Board 

Email: scollier@ucdavis.edu

Katja Dzepina

Visiting Scholar, 2016

Education:

Ph.D. in Physical/Analytical/Atmospheric Chemistry, University of Colorado at Boulder, 2009

B.S. in chemistry, University of Zagreb, Croatia, 1999

Current affiliation: Department of Biotechnology, University of Rijeka, Croatia, Nov 2014 - present

Email: dzepina@gmail.com

Xinlei Ge

2011 - 2014, postdoctoral scholar

Education:

PhD Metallurgical Physical Chemistry, University of Science and Technology Beijing(USTB), 2009

PhD Materials Science and Engineering, Royal Institute of Technology Sweden(KTH), 2009

B.S. Metallurgy, University of Science and Technology Beijing(USTB), 2003

Current affiliation: Professor, Nanjing University of Information Science & Technology

Email: caxinra@163.com

Lihui Han

2014 - 2015, visiting scholar

Education: 

PhD  Department of Chemistry, Beijing Normal University, China, 2005

M.S. Environmental Engineering, Lanzhou Jiaotong University, 1992

Email: hlhbjut@gmail.com

Hwajin Kim2013 - 2014, postdoctoral scholar

Education:

PhD Atmospheric Chemistry, UCLA, 2012

M.S. Environmental Science and Engineering, Postech, 2007

B.S Environmental Science and Engineering, Younsei University, 2004

Current affiliation: Assistant professor, National Seoul University, South Korea

Email: hwajinkim0116@gmail.com

 Haiyan Li

2016 - 2017, visiting student

Education:

B.S. in Environmental Science and Engineering, Shandong University, China, 2013

Current affiliation: Assistant professor, Harbin Institute of Technology, Shenzhen, China

Email: lihaiyan13@mails.tsinghua.edu.cn

Visiting Scholar

Jianjun Li

Visiting Scholar, 2017 - present

Education

Ph.D, Chemical Engineering, Xi’an Jiaotong University, 2011

B.S., Environmental Engineering, Xi’an Polytechnic University, 2006

Research 

Heterogeneous formation of secondary organic aerosols; Impact of organic aerosols on Haze formation in China; Effects of anthropogenic pollution on Biogenic Secondary Organic Aerosol (BSOA).

Email: lijj@ieecas.cn

Nutthakarn Soiseng

Masters student, Agricultural and Environmental Chemistry, 2021

Education:

B.A., in Chemistry, University of San Francisco


Email: nsoisaeng@ucdavis.edu 

Caroline Parworth

2011 - 2017, Ph.D. student, Agricultural and Environmental Chemistry

Education:

Ph.D. in Agricultural and Environmental Chemistry, University of California, Davis, 2017

B.S. in Chemistry, University of North Carolina of Asheville, 2010

B.A. in Applied Mathematics, University of North Carolina of Asheville, 2010

Current affiliation: Postdoc, NASA

Email: clparworth@ucdavis.edu

Ari Setyan, PhD2010 – 2012, postdoctoral scholar

Education:

Ph.D. Life Sciences, University of Lausanne (Switzerland), 2009

M.S. Chemistry, University of Geneva (Switzerland), 2002

B.S. Chemistry, University of Geneva (Switzerland), 2001

Current affiliation: Chemist R&D, Head of Laboratory and of Quality Management at Le Labo AE, Switzerland

Email: ari.setyan@empa.ch

Kojiro Shimada, PhD

2011 - 2011, visiting graduate student

Current affiliation: Postdoctoral scholar, Tokyo University of Agriculture and Technology

Email: k.shimada.0505.hym@gmail.com

Nalin Singh

Undergraduate, Environmental Toxicology with emphasis in Chemical Fate, 2013 - present

Research:

- Statistical analysis of the ion chromatography data collected for aerosol samples

Email: nalsingh@ucdavis.edu

Yele Sun, PhD

2006 - 2010, postdoctoral scholar

Education:

Ph.D. Department of Chemistry, Beijing Normal University, 2006

B.S. Department of Chemistry, Beijing Normal University, 2001

Current affiliation: Professor, Institute of Atmospheric Physics, Chinese Academy of Sciences

Email: sunyele@gmail.com


Jian Tian, M.S.

2007 - 2009, M.S. in Atmospheric Science, State University of New York at Albany

Current affiliation: PhD student, University of Illinois at Urbana-Champaign

Email: tianjian83@gmail.com

Minmeng Tang

Ph.D. student, Atmospheric Science, 2016 - present 

Education:

M.S. in Environmental Engineering, University of Michigan, Ann Arbor, 2016

B.Eng. in Environmental Engineering, Monash University, 2013

B.Eng. in Environmental Engineering, Tongji University, 2013

Research:

Jiayuan Wang

Visiting Scholar, 2018 - present

Education:

B.S., Environmental Science, Sichuan University, 2009

M.S., Environmental Science, Sichuan University, 2012

Ph.D., Environmental Science, Institute of Earth Environment, Chinese Academy of Sciences, 2017

Research:

Compositions and aging processes of diacids, aiming to better understand the formation mechanism of SOA

Email: wangjy@ieecas.cn

Jun-feng Wang

2015 - 2016, visiting student

Education:

M.S. in Environmental Science, Nanjing University of Information Science & Technology, China, 2012

B.S. in Information Engineering, Chengdu University of Technology, China, 2009

Current affiliation: Professor, Nanjing University of Information Science & Technology

Email: 15295738628@163.com, junfeng0411@gmail.com

Ningxin Wang

Postdoc, 2018 - 2019

Education:

Ph.D., Chemical Engineering, Carnegie Mellon University, 2018

B.S., Chemical Engineering, the University of Arizona, 2012

B.S., Environmental Science and Engineering, Shanghai Jiao Tong University, 2012 

Email: nwang@ucdavis.edu

Qingqing Wang

2017, Visiting Scholar

Education:

Ph.D. in Atmospheric Physics and Atmospheric Environment, Institute of Atmospheric Physics, Chinese Academy of Sciences, 2016

M.S. in Atmospheric Physics and Atmospheric Environment, University of Chinese Academy of Sciences, 2013

B.S. in Chemical Engineering and Technology, Nanjing Forestry University, 2009

Current affiliation:

- Assistant Professor, Institute of Atmospheric Physics, Chinese Academy of Sciences

Email: wangqingqing@mail.iap.ac.cn

Jinfang Xie, PhD

2011 - 2011, visiting scholar

Current affiliation: Professor, Shanxi University

Email: xiejf@sxu.edu.cn

Jianzhong Xu, PhD

2011 - 2014, visiting scholar

Education:

PhD in Geography, Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences (China), 2008

B.S. in Atmospheric Science, University of Lanzhou (China), 2002

Current affiliation: Professor, Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences

Email: jzxu78@gmail.com

Zhaolian Ye, PhD

2014 - 2015, visiting scholar

Education:

PhD in Environmental Science, Institute of Environmental Science, Fudan University (China), 2009

M.S. in Environmental Engineering, Nanjing University of Technology (China), 2002

Email: zlye@ucdavis.edu

Dominique Young

2015 - 2016, Postdoctoral Scholar

Education:

PhD in Atmospheric Sciences, University of Manchester, UK, 2014

MESc. in Earth Sciences, University of Oxford, UK, 2010

Current affiliation: Laboratory Quality Assurance Officer at the Air Quality Group, University of California, Davis.

Email: deyou@ucdavis.edu

Lu Yu, PhD

2010 - 2015, Ph.D. student, Agricultural and Environmental Chemistry

Education:

Ph.D. in Agricultural and Environmental Chemistry, UC Davis, 2015

M.S. in Environmental Science, Rutgers University, 2010

Current affiliation: BOE technologies, Inc.

Email: yulu0704@gmail.com

Shan Zhou

2011 - 2017, Ph.D. student, Atmospheric Science

Education:

Ph.D., Atmospheric Science, University of California, Davis, 2017

B.S., Atmospheric Science, Sun Yat-sen University, 2011

Current affiliation: Research Scientist, University of Houston

Email: hszhou@ucdavis.edu