Marianne Hatzopoulou


Canada Research Chair in Transportation and Air Quality
Head of the Transportation and Air Quality research group

Visit the Facebook page of the Transportation and Air Quality Research Group 

The research of the TRAQ research group was recently featured in the documentary Something in the Air, The Nature of Things:

Marianne Hatzopoulou1

Marianne Hatzopoulou
Department of Civil & Mineral Engineering
University of Toronto
35 St. George St.
Toronto, Ontario
Canada, M5S 1A4

Tel.: 416-978-0864


My research area bridges between transportation and environmental analysis; and my main expertise is in modelling of road transport emissions and urban air quality as well as evaluating population exposure to air pollution. I am interested in capturing the interactions between the daily activities and travel patterns of urban dwellers and the generation and dispersion of traffic emissions in urban environments. I lead an active research group focusing on modelling traffic emissions and near-road air quality as well as near-road air pollution monitoring and characterization.


BSc (Physics, American University of Beirut, 1999)
MSc (Envtal Technology, Civil Eng., American University of Beirut, 2001)
PhD (Transportation Engineering, Civil Eng., University of Toronto, 2008)
Postdoctoral training (University of Toronto, 2009)
Postdoctoral training (Massachusetts Institute of Technology, 2010)

Research Interests

Traffic-Related Air Pollution

Urban Air Quality

Transportation Engineering

Transportation Planning


Zhiqiang Zhai, PhD, Postdoctoral Fellow 


Sham Gamage, PhD, Postdoctoral Fellow

Shoma Yamanouchi, PhD, Postdoctoral Fellow



Jad Zalzal, PhD Candidate

Arman Ganji, PhD, Research Associate

Sara Torbatian, PhD Candidate

Emily Farrar, PhD Candidate



Marc Saleh, PhD Candidate

Keni Mallinen, MASc Candidate

Research in Images

UrbanScanner platform for measuring air quality and capturing images of the urban environment developed by TRAQ group in collaboration with industrial partner

PEMS (Portable Emissions Monitoring System) testing of exhaust for a gasoline direct injection SUV while driving in Toronto

Distribution of ambient NO2 across the Montreal Island

Distribution of Black Carbon levels across Toronto

Distribution of ultrafine particles in Toronto

Black Carbon across cycling routes in Toronto

Ultrafine particles along cycling routes in Toronto

Testing Aeroqual S500 sensors againts fixed station (RSQA) in Montreal

Traffic-related emission inventory in the Greater Toronto and Hamilton Area

Annual number of years of life lost per 100,000 persons due to air pollution from passenger vehicles (332 premature deaths per year) and commercial vehicles (407 premature deaths per year)

Monetized social benefits

Thesis Abstracts for TRAQ Graduates (MASc and PhD)



Course CodeTitle & DescriptionSessionDay(s)Start TimeEndSection
Modelling Transport Emissions

Summer 2023
May 16 - June 22

Tuesdays and Thursdays11:0014:00
CME261HFall 2020Scheduled by the Office of the Faculty Registrar.


From tires to brakes, U of T researchers tackle ‘non-tailpipe’ air pollution from vehicles

CivMin’s Professor Marianne Hatzopoulou is part of the U of T team of researchers conducting a three-year study to learn more about tailpipe vs. non-tailpipe emissions With the increasing popularity of electric vehicles (EVs), car-related air pollution will be less of a concern, right? Think again, say a group of University of Toronto researchers who […]

Lightning strikes twice

The second iteration of the CivMin Grad Lightning Series was held Thursday, February 23 with six presenters. The format, conceived by Prof. Marianne Hatzopoulou, saw rapid presentations of research to date by six senior CivMin graduate students near the completion of their research.The five to seven-minute overview provided by each candidate was followed by an audience Q&A, […]

CivMin professors awarded DSI funding for collaborative projects

CivMin’s Professor Sebastian Goodfellow (MIE MASc 1T0, CivE PhD 1T5) and Professor Marianne Hatzopoulou (CivE PhD 0T8), both CivMin alumni, are on teams which have each been awarded $100,000 for collaborative projects under the Data Sciences Institute (DSI) Catalyst Grant. Goodfellow, along with a team of doctors at Hospital for Sick Children (SickKids), has been awarded […]