Citation Rankings
Highly Cited Researchers
University of Toronto Highly Cited Researchers CitationEngineering & Technology / Environmental Science & Engineering Rankings (Sort by last 6 years Citation Index) 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
stigma
HIV
youth
humanitarian health
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,762
11,749
0.796
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
environment
work & health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,188
8,969
0.356
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Environmental Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,323
8,549
0.292
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Environmental Chemistry
Soil Biogeochemistry
Natural Organic Matter
Environmental Metabolomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,757
7,427
0.503
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Environmental Modelling
Ecological Informatics
Watershed Modelling
Limnology
Uncertainty Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,082
5,295
0.525
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
environmental chemistry & toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,586
3,129
0.560
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
climatology
climate change
air quality
Hudson Bay
tropical cyclones
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,622
2,451
0.530
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Environmental Science
Biogeochemistry
Hydrology
Mercury
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,106
2,087
0.672
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Polymer
Membrane
Adhesive
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,841
1,564
0.850
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Environmental Chemistry
Ecology
Environmental Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,564
1,542
0.986
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
constructed wetlands
bioretention cells
emerging contaminants
environmental engineering
stable
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,382
1,471
0.618
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
air quality
traffic-related air pollution
vehicle emissions
aerosol
greenhouse gas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,736
1,366
0.787
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Climate change - Carbon cycling - Ecological modeling - Remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,758
1,177
0.670
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
Global Health
Health Equity
Social Epidemiology
Environment and Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,215
1,083
0.891
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
climate change
climate change adaptation
disaster risk creation
climate policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,050
975
0.476
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Air Quality
Atmospheric Science
Aerosols
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,063
917
0.863
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Cryosphere
Citizen Science
Climate Change Adaptation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,062
737
0.694
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
Sustainable Development
Data-driven Sustainability
Climate Change
Scenario Analysis
Innovation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
854
729
0.854
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
homelessness
climate change
public health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,986
576
0.290
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
environmental technology
mine wastes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,327
556
0.239
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
Climate Science
Atmospheric Science
Sea Ice-Atmosphere interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
745
471
0.632
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
Air Quality
Clean gas technologies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
873
413
0.473
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
alternative proteins
precision fermentation
environmental microbiology
microbial ecology
petroleum hydrocarbon biodegradatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
588
400
0.680
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
Environmental science
Water quality Management
Ecological Modeling
Water Quality Risk Assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
598
232
0.388
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
environment
public health
social-ecological systems
watershed governance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
582
219
0.376
* Last 6 Years Citation Counts Rankings
Rankings
26,614
1,031
146
Ranking Based On Selection: 1
Carmen Logie
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,762
11,749
0.796
stigma
HIV
youth
humanitarian health
climate change
* Last 6 Years Citation Counts Rankings
Rankings
39,811
1,570
219
Ranking Based On Selection: 2
Donald Cole
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,188
8,969
0.356
environment
work & health
* Last 6 Years Citation Counts Rankings
Rankings
42,673
1,670
229
Ranking Based On Selection: 3
Frank Wania
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,323
8,549
0.292
Environmental Chemistry
* Last 6 Years Citation Counts Rankings
Rankings
52,111
2,070
283
Ranking Based On Selection: 4
Myrna Simpson
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,757
7,427
0.503
Environmental Chemistry
Soil Biogeochemistry
Natural Organic Matter
Environmental Metabolomics
* Last 6 Years Citation Counts Rankings
Rankings
82,214
3,324
422
Ranking Based On Selection: 5
George Arhonditsis
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,082
5,295
0.525
Environmental Modelling
Ecological Informatics
Watershed Modelling
Limnology
Uncertainty Analysis
* Last 6 Years Citation Counts Rankings
Rankings
155,463
6,263
731
Ranking Based On Selection: 6
Craig Michael Butt
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,586
3,129
0.560
environmental chemistry & toxicology
* Last 6 Years Citation Counts Rankings
Rankings
203,420
8,190
936
Ranking Based On Selection: 7
William A Gough
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,622
2,451
0.530
climatology
climate change
air quality
Hudson Bay
tropical cyclones
* Last 6 Years Citation Counts Rankings
Rankings
240,257
9,581
1,079
Ranking Based On Selection: 8
Carl Mitchell
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,106
2,087
0.672
Environmental Science
Biogeochemistry
Hydrology
Mercury
* Last 6 Years Citation Counts Rankings
Rankings
317,137
12,278
1,370
Ranking Based On Selection: 9
Yifeng Huang
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,841
1,564
0.850
Polymer
Membrane
Adhesive
* Last 6 Years Citation Counts Rankings
Rankings
321,248
12,417
1,384
Ranking Based On Selection: 10
Clara Thaysen
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,564
1,542
0.986
Environmental Chemistry
Ecology
Environmental Science
* Last 6 Years Citation Counts Rankings
Rankings
335,139
12,863
1,437
Ranking Based On Selection: 11
Elodie Passeport
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,382
1,471
0.618
constructed wetlands
bioretention cells
emerging contaminants
environmental engineering
stable
* Last 6 Years Citation Counts Rankings
Rankings
357,848
13,645
1,505
Ranking Based On Selection: 12
Jonathan M Wang
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,736
1,366
0.787
air quality
traffic-related air pollution
vehicle emissions
aerosol
greenhouse gas
* Last 6 Years Citation Counts Rankings
Rankings
405,481
15,190
1,671
Ranking Based On Selection: 13
Fangmin Zhang
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,758
1,177
0.670
Climate change - Carbon cycling - Ecological modeling - Remote sensing
* Last 6 Years Citation Counts Rankings
Rankings
433,154
16,075
1,742
Ranking Based On Selection: 14
Kilian Atuoye
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,215
1,083
0.891
Global Health
Health Equity
Social Epidemiology
Environment and Health
* Last 6 Years Citation Counts Rankings
Rankings
468,870
17,168
1,841
Ranking Based On Selection: 15
Thea Dickinson
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,050
975
0.476
climate change
climate change adaptation
disaster risk creation
climate policy
* Last 6 Years Citation Counts Rankings
Rankings
490,327
17,862
1,905
Ranking Based On Selection: 16
Nathan Hilker
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,063
917
0.863
Air Quality
Atmospheric Science
Aerosols
* Last 6 Years Citation Counts Rankings
Rankings
568,635
20,271
2,131
Ranking Based On Selection: 17
Larissa Pizzolato
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,062
737
0.694
Cryosphere
Citizen Science
Climate Change Adaptation
* Last 6 Years Citation Counts Rankings
Rankings
572,661
20,401
2,141
Ranking Based On Selection: 18
Ali Beynaghi
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
854
729
0.854
Sustainable Development
Data-driven Sustainability
Climate Change
Scenario Analysis
Innovation
* Last 6 Years Citation Counts Rankings
Rankings
657,673
22,716
2,348
Ranking Based On Selection: 19
Tomislav Svoboda
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,986
576
0.290
homelessness
climate change
public health
* Last 6 Years Citation Counts Rankings
Rankings
670,621
23,042
2,376
Ranking Based On Selection: 20
Margarete Kalin
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,327
556
0.239
environmental technology
mine wastes
* Last 6 Years Citation Counts Rankings
Rankings
732,710
24,643
2,527
Ranking Based On Selection: 21
Frédéric Laliberté
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
745
471
0.632
Climate Science
Atmospheric Science
Sea Ice-Atmosphere interactions
* Last 6 Years Citation Counts Rankings
Rankings
784,855
26,181
2,703
Ranking Based On Selection: 22
Ezzat Jaroudi
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
873
413
0.473
Air Quality
Clean gas technologies
* Last 6 Years Citation Counts Rankings
Rankings
798,262
26,544
2,741
Ranking Based On Selection: 23
Fei Luo
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
588
400
0.680
alternative proteins
precision fermentation
environmental microbiology
microbial ecology
petroleum hydrocarbon biodegradatio
* Last 6 Years Citation Counts Rankings
Rankings
1,036,097
33,288
3,620
Ranking Based On Selection: 24
Maryam Ramin
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
598
232
0.388
Environmental science
Water quality Management
Ecological Modeling
Water Quality Risk Assessment
* Last 6 Years Citation Counts Rankings
Rankings
1,062,462
34,028
3,703
Ranking Based On Selection: 25
Karen Morrison
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
582
219
0.376
environment
public health
social-ecological systems
watershed governance