The Team

Most Recent Group Photo

Online group pic 20200507

Taken May 7, 2020 during the COVID19 pandemic
Top row left to right: Tania,  Ran,  Jessica, Max
Middle row left to right: Chester, Timothy, Shuang, Carter
Bottom row left to right: Christian, Wayne

Principal Investigator:

Leduc Medium

Ran Zhao (Assistant Professor of Chemistry)
BSc, PhD – University of Toronto
Postdoc – California Institute of Technology

Ran is an enthusiastic Atmospheric Chemist performing active research to understand the role of chemistry in the air that we breathe. He obtained his PhD degree at the University of Toronto in Dr. Jonathan Abbatt’s lab. Ran worked as an NSERC postdoc fellow at California Institute of Technology (Supervisors: Dr. John Seinfeld and Dr. Paul Wennberg) before joining the University of Alberta in 2018.  Check out his personal publication list at Reseachgate: 

Graduate Students:

Jessica Lima AmorimJessica Lima Amorim2
Jessica obtained her BSc degree at Universidade Federal do Espirito Santo, Brazil. Nominated by her university to the Brazilian Science Without Borders program, Jessica studied English and chemistry at the University of South Carolina (USA), and further completed an internship at the Illinois Institute of Technology (USA). Jessica is interested in research areas focusing on imminent environmental issues faced nowadays. She joined the Zhao group in 2018 as a PhD student and is currently investigating organic chemistry taking place in cloudwater and other atmospheric aqueous phases.


Tania GautamTania Gautam
Tania completed her BSc Specialization in Chemistry degree with SIP in 2018 at the University of Alberta. During her undergraduate studies, she joined Dr. Sarah Styler’s group on the analysis of organosulfate formation in dust particles. After her undergraduate project completion, she further acquired research experience in environmental analytical lab at ALS, Calgary, and National Research Council (NRC), Edmonton.
Tania joined the Zhao group in 2018 as a PhD student and is currently working on the development of an HPLC-Fluorescence technique for the analysis of organic peroxides in SOA. Her research goal involves a direct comparison between pre and post-column treatments for detection of organic peroxides in varying sample matrices.


MaxMax Loebel Roson
Max completed a B.Sc in Environmental & Analytical Science and a B.Sc.
Hons. in Chemical Instrumentation at the Limerick Institute of Technology in
Ireland. His undergraduate research focused on the study of matrix effects on
the absorption of heavy metals by macro algae.
Since then, his research interests have expanded towards atmospheric
chemistry. Max joined the Zhao Group as a PhD student in 2018. His research
is now focused on the study of organic aerosol particles emitted from solid fuel
burning. He is now one step closer to completing the ancient Greek Water,
Earth, Wind and Fire transition.

Shot with FIMO EK 80.

Shuang Wu
Shuang completed her BSc and MSc degrees in Atmospheric Science from Nanjing University in (MSc – 2018). During the past few years of research, she participated in projects on haze hazards, air quality, and urban climate planning. Since then, Shuang‘s interest in atmospheric chemistry has grown, and she joined the Zhao Group as a PhD student in 2019. Her current research is to study the chemistry of volatile organic compounds, with a particular focus on those emitted by microbes in the indoor environment. She will be taking an approache combining experiments and chemical models.


TimothyBIOXinyang (Timothy) Guo 
Timothy completed his BSc degree of Enviornmental Chemistry Specialist at the University of Toronto. His undergraduate research was focusing on the loss of ammonium species from fertilized urban lands. During his undergraduate period, Timothy has developed strong interests and capabilities to work as an atmospheric chemist. Timothy joined the Zhao group in the fall of 2019, and his current research is focusing on the development of an online direct injection mass spectrometer, which can aid in the real-time analysis of ambient aerosol.




Undergraduate Students:

Chester Lau

Chester Lau
Chester is a first year undergraduate student attending the University of Alberta in the Faculty of Science. After a high-achieving high school career, Chester was admitted to U of A with a prestige entrance scholarship. Chester‘s thirst for knowledge and commendable work ethic have already provided him with opportunities to participate in many science workshops before he joined the Zhao Research Group as an undergraduate research assistant in September 2018. His work in the group is focused on household humidifiers as a potential source of indoor air pollutants. Chester enjoys table tennis and plays competitively in tournaments across Alberta.


Sophie Shi – undergraduate student, now at U of A Materials Engineering
Meng Wang
Jeff Ma
Wayne Cheng
Keifer Klimchuk