Citation Rankings
Highly Cited Researchers
Hong Kong Highly Cited Researchers CitationEngineering & Technology / Environmental Science & Engineering in Hong Kong Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Environmental engineering
Membrane technology
Desalination
Water reuse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,388
29,054
0.655
* Total Citation Counts Rankings
Ranking Based On Selection :2
Environmental Biotechnology
Environmental Microbiology
Environmental Microbiome
Biological Wastewater Treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,373
28,548
0.658
* Total Citation Counts Rankings
Ranking Based On Selection :3
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,471
24,234
0.614
* Total Citation Counts Rankings
Ranking Based On Selection :4
Environmental Sciences
antibiotic resistance
air pollution and health
environmental geochemistry
phytoremediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,427
16,948
0.430
* Total Citation Counts Rankings
Ranking Based On Selection :5
Metal Ecotoxicology and Biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,069
12,544
0.404
* Total Citation Counts Rankings
Ranking Based On Selection :6
Urban Sustainability
Sustainable built environment
Carbon neutrality
Sustainability Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,906
19,708
0.824
* Total Citation Counts Rankings
Ranking Based On Selection :7
Water quality and water supply
Wastewater treatment
Particle dynamics in water
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,880
13,706
0.574
* Total Citation Counts Rankings
Ranking Based On Selection :8
wastewater
sewer
treatment
reuse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,058
9,445
0.672
* Total Citation Counts Rankings
Ranking Based On Selection :9
Waste recycling
Eco-friendly concrete
CO2 mineralization
Low carbon cement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,885
11,831
0.852
* Total Citation Counts Rankings
Ranking Based On Selection :10
Wastewater Treatment
Microplastics and Nanoplastics
Resource Recovery
Environmental Engineering
Environmental Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,273
11,955
0.901
* Total Citation Counts Rankings
Ranking Based On Selection :11
Environmental epidemiology
air pollution and health
chemical carcinogenesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,691
7,907
0.623
* Total Citation Counts Rankings
Ranking Based On Selection :12
air quality
sensor
instrumentation
public health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,968
7,173
0.720
* Total Citation Counts Rankings
Ranking Based On Selection :13
Hydrogeology
Groundwater
Coastal Hydrogeology
Engineering Geology
HKU-DES
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,904
4,661
0.523
* Total Citation Counts Rankings
Ranking Based On Selection :14
Water
Membrane
and Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,635
6,680
0.875
* Total Citation Counts Rankings
Ranking Based On Selection :15
Indoor Air Quality
Aerosols
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,363
3,834
0.521
* Total Citation Counts Rankings
Ranking Based On Selection :16
Enviromental Science and Technology
Material Science of cement composite
Materials and Structure Design of Pavements
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,802
6,063
0.891
* Total Citation Counts Rankings
Ranking Based On Selection :17
atmospheric chemistry modeling
chemistry-climate interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,738
6,253
0.928
* Total Citation Counts Rankings
Ranking Based On Selection :18
Environmental Engineering
Chemical Engineering
Biomass Conversion
Waste Valorization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,511
5,941
0.912
* Total Citation Counts Rankings
Ranking Based On Selection :19
Air Pollution
Combustion
Fluid Mechanics
Fuel Engineering
Heat Transfer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,424
2,762
0.430
* Total Citation Counts Rankings
Ranking Based On Selection :20
Environmental Pollution
heavy metal
rice
phytoremediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,389
5,253
0.822
* Total Citation Counts Rankings
Ranking Based On Selection :21
Environmental pollution
Hydrology
Environmental education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,648
4,958
0.878
* Total Citation Counts Rankings
Ranking Based On Selection :22
Environmental Analytical Chemistry
Analytical Spectrometry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,637
2,544
0.451
* Total Citation Counts Rankings
Ranking Based On Selection :23
Environmental Remediation
Water Treatment Technology
Advanced Oxidation Processes
Photo-Redox Catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,359
3,582
0.668
* Total Citation Counts Rankings
Ranking Based On Selection :24
Environmental and Energy Economics
Development Economics
Chinese Economy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,257
4,810
0.915
* Total Citation Counts Rankings
Ranking Based On Selection :25
Environmental Engineering
water reuse
membrane technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,030
4,894
0.973
* Total Citation Counts Rankings
Rankings
11,992
95
25
Ranking Based On Selection: 1
Chuyang Tang
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,388
29,054
0.655
Environmental engineering
Membrane technology
Desalination
Water reuse
* Total Citation Counts Rankings
Rankings
12,465
100
28
Ranking Based On Selection: 2
Tong Zhang Hku
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,373
28,548
0.658
Environmental Biotechnology
Environmental Microbiology
Environmental Microbiome
Biological Wastewater Treatment
* Total Citation Counts Rankings
Rankings
14,524
125
3
Ranking Based On Selection: 3
Ho Wing Kei
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,471
24,234
0.614
* Total Citation Counts Rankings
Rankings
14,542
127
14
Ranking Based On Selection: 4
Xd Li Li Xiang Dong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,427
16,948
0.430
Environmental Sciences
antibiotic resistance
air pollution and health
environmental geochemistry
phytoremediation
* Total Citation Counts Rankings
Rankings
21,118
184
31
Ranking Based On Selection: 5
Wen Xiong Wang
City University of Hong Kong
Coimbatore, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,069
12,544
0.404
Metal Ecotoxicology and Biogeochemistry
* Total Citation Counts Rankings
Rankings
31,423
277
45
Ranking Based On Selection: 6
Xiaoling Zhang
City University of Hong Kong
Coimbatore, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,906
19,708
0.824
Urban Sustainability
Sustainable built environment
Carbon neutrality
Sustainability Science
* Total Citation Counts Rankings
Rankings
31,477
278
74
Ranking Based On Selection: 7
Xiao Yan Li Xy Li
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,880
13,706
0.574
Water quality and water supply
Wastewater treatment
Particle dynamics in water
* Total Citation Counts Rankings
Rankings
64,877
530
75
Ranking Based On Selection: 8
GH Chen
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,058
9,445
0.672
wastewater
sewer
treatment
reuse
* Total Citation Counts Rankings
Rankings
65,930
542
73
Ranking Based On Selection: 9
Tung Chai Bill Ling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,885
11,831
0.852
Waste recycling
Eco-friendly concrete
CO2 mineralization
Low carbon cement
* Total Citation Counts Rankings
Rankings
69,845
569
8
Ranking Based On Selection: 10
Yiu Fai Tsang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,273
11,955
0.901
Wastewater Treatment
Microplastics and Nanoplastics
Resource Recovery
Environmental Engineering
Environmental Technology
* Total Citation Counts Rankings
Rankings
73,903
602
151
Ranking Based On Selection: 11
Linwei Tian
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,691
7,907
0.623
Environmental epidemiology
air pollution and health
chemical carcinogenesis
* Total Citation Counts Rankings
Rankings
98,595
792
110
Ranking Based On Selection: 12
Zhi Ning
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,968
7,173
0.720
air quality
sensor
instrumentation
public health
* Total Citation Counts Rankings
Rankings
112,093
900
218
Ranking Based On Selection: 13
Jiu Jimmy Jiao 焦赳赳
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,904
4,661
0.523
Hydrogeology
Groundwater
Coastal Hydrogeology
Engineering Geology
HKU-DES
* Total Citation Counts Rankings
Rankings
132,997
1,013
161
Ranking Based On Selection: 14
Alicia Kyoungjin An
City University of Hong Kong
Coimbatore, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,635
6,680
0.875
Water
Membrane
and Energy
* Total Citation Counts Rankings
Rankings
138,276
1,062
168
Ranking Based On Selection: 15
Lai Alvin
City University of Hong Kong
Coimbatore, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,363
3,834
0.521
Indoor Air Quality
Aerosols
* Total Citation Counts Rankings
Rankings
150,372
1,127
170
Ranking Based On Selection: 16
Dongxing Xuan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,802
6,063
0.891
Enviromental Science and Technology
Material Science of cement composite
Materials and Structure Design of Pavements
* Total Citation Counts Rankings
Rankings
151,901
1,135
35
Ranking Based On Selection: 17
Meng Gao
Hong Kong Baptist University
Hong Kong, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,738
6,253
0.928
atmospheric chemistry modeling
chemistry-climate interactions
* Total Citation Counts Rankings
Rankings
157,360
1,169
184
Ranking Based On Selection: 18
Season Si Chen
City University of Hong Kong
Coimbatore, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,511
5,941
0.912
Environmental Engineering
Chemical Engineering
Biomass Conversion
Waste Valorization
* Total Citation Counts Rankings
Rankings
159,513
1,182
179
Ranking Based On Selection: 19
Leung Cw
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,424
2,762
0.430
Air Pollution
Combustion
Fluid Mechanics
Fuel Engineering
Heat Transfer
* Total Citation Counts Rankings
Rankings
160,384
1,197
16
Ranking Based On Selection: 20
Wai Chin Li
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,389
5,253
0.822
Environmental Pollution
heavy metal
rice
phytoremediation
* Total Citation Counts Rankings
Rankings
181,530
1,328
18
Ranking Based On Selection: 21
Lincoln Fok
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,648
4,958
0.878
Environmental pollution
Hydrology
Environmental education
* Total Citation Counts Rankings
Rankings
181,956
1,332
40
Ranking Based On Selection: 22
Kelvin Sze Yin Leung
Hong Kong Baptist University
Hong Kong, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,637
2,544
0.451
Environmental Analytical Chemistry
Analytical Spectrometry
* Total Citation Counts Rankings
Rankings
190,993
1,396
203
Ranking Based On Selection: 23
Alok D Bokare
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,359
3,582
0.668
Environmental Remediation
Water Treatment Technology
Advanced Oxidation Processes
Photo-Redox Catalysis
* Total Citation Counts Rankings
Rankings
194,598
1,426
209
Ranking Based On Selection: 24
Guojun He
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,257
4,810
0.915
Environmental and Energy Economics
Development Economics
Chinese Economy
* Total Citation Counts Rankings
Rankings
203,137
1,469
374
Ranking Based On Selection: 25
Hao Guo 郭浩|Hao Guo, Guo Hao
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,030
4,894
0.973
Environmental Engineering
water reuse
membrane technology