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
Fall 2021Friday11:0012:00LEC9101
Winter 2022Friday11:0012:00LEC9101
Summer 2021
Dates: May 3 to June 3

Add Deadline: Thursday, May 6
Drop Deadline: Friday May 14
Tuesday, Wednesdays, Thursday 13:0015:00LEC9101
CME261HFall 2020Scheduled by the Office of the Faculty Registrar.


Researchers investigate health effects of fracking in B.C.’s Northeast

With thousands of wells and counting, the Northeast region of British Columbia is one of Canada’s most important hubs of hydraulic fracturing, or fracking — the process of blasting pressurized liquid at rock formations to fracture them and release the natural gas trapped inside. Part of the region sits atop the Montney Formation, a massive,… Read more »

U of T Engineering team earns Brockhouse Prize for Interdisciplinary Research in Science and Engineering

CivMin’s Prof. Marianne Hatzopoulou among those honoured A multidisciplinary team that includes several U of T Engineering professors has been awarded the 2021 Brockhouse Prize for Interdisciplinary Research in Science and Engineering from the Natural Sciences and Engineering Research Council of Canada. The award recognizes outstanding Canadian teams of researchers from different disciplines. In this case, the… Read more »

The UrbanScanner Project: Mobile monitoring of air pollution in cities

  What rolls around the city getting a lot of admiring looks for its flashy chromed finishes and high tech roof protrusions? It’s not the latest tech from a popular web search engine company; it’s something entirely different. Meet UrbanScanner, a mobile testing laboratory on wheels, in the form of an automobile, researchers are driving around… Read more »

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