Citation Rankings
Highly Cited Researchers
Hong Kong University of Science Highly Cited Researchers CitationEngineering & Technology / Environmental Science & Engineering 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
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 :2
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 :3
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 :4
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 :5
water governance
health policy
anti-corruption
China
Policy Design
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,007
2,916
0.582
* Total Citation Counts Rankings
Ranking Based On Selection :6
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,644
3,507
0.962
* Total Citation Counts Rankings
Ranking Based On Selection :7
climate change
regional climate modeling
climate change impact
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,216
2,161
0.672
* Total Citation Counts Rankings
Ranking Based On Selection :8
Ultraviolet (UV)
Chlorine chemistry
Water reuse engineering
Environment-health nexus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,325
2,214
0.952
* Total Citation Counts Rankings
Ranking Based On Selection :9
Environmental Biotechnology
Nature-based Solutions
Antimicrobial resistance
Denitrification
LIBs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,045
1,910
0.934
* Total Citation Counts Rankings
Ranking Based On Selection :10
Air pollution
exposure modeling
microenvironment air quality characterization
vehicle emission
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,801
1,025
0.569
* Total Citation Counts Rankings
Ranking Based On Selection :11
Air Quality
3D Numerical Modeling
Remote Sensing
Machine Learning
Environmental Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,538
1,356
0.882
* Total Citation Counts Rankings
Ranking Based On Selection :12
water treatment
disinfection byproducts
micropollutants
adsorption
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,443
1,364
0.945
* Total Citation Counts Rankings
Ranking Based On Selection :13
Environmental Policy
Stakeholders Engagement
Environmental Communications
Ecology & Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,232
341
0.277
* Total Citation Counts Rankings
Ranking Based On Selection :14
Environmental engineering
wastewater treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,189
790
0.664
* Total Citation Counts Rankings
Ranking Based On Selection :15
climate change
environmental governance
policy implementation
energy efficiency
regulatory compliance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,129
908
0.804
* Total Citation Counts Rankings
Ranking Based On Selection :16
Waste management
Sludge treatment and Environmental Impact Assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,118
581
0.520
* Total Citation Counts Rankings
Ranking Based On Selection :17
Wastewater treatment
urine separation and treatment
life cycle assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,084
955
0.881
* Total Citation Counts Rankings
Ranking Based On Selection :18
Unsaturated soil
Geoenvironmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
835
674
0.807
* Total Citation Counts Rankings
Ranking Based On Selection :19
Waste to energy
Modeling
simulation and optimization
Heat Integration
Pinch Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
781
566
0.725
* Total Citation Counts Rankings
Ranking Based On Selection :20
marine environmental science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
463
461
0.996
* Total Citation Counts Rankings
Ranking Based On Selection :21
water treatment
water reuse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161
161
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :22
environmental science
environmental economics
net-zero agriculture
energy system modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52
52
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :23
stable isotope ecology
coral reef ecology
mesophotic coral ecosystems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18
18
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :24
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
* Total Citation Counts Rankings
Rankings
64,877
530
75
Ranking Based On Selection: 1
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
98,595
792
110
Ranking Based On Selection: 2
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
190,993
1,396
203
Ranking Based On Selection: 3
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: 4
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
204,063
1,476
223
Ranking Based On Selection: 5
Xun Wu
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,007
2,916
0.582
water governance
health policy
anti-corruption
China
Policy Design
* Total Citation Counts Rankings
Rankings
273,246
1,886
280
Ranking Based On Selection: 6
Xin Cheng|程鑫
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,644
3,507
0.962
Environmental Engineering
* Total Citation Counts Rankings
Rankings
304,114
2,066
304
Ranking Based On Selection: 7
Eun Soon Im
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,216
2,161
0.672
climate change
regional climate modeling
climate change impact
* Total Citation Counts Rankings
Rankings
393,917
2,518
368
Ranking Based On Selection: 8
Ran Yin
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,325
2,214
0.952
Ultraviolet (UV)
Chlorine chemistry
Water reuse engineering
Environment-health nexus
* Total Citation Counts Rankings
Rankings
432,971
2,694
396
Ranking Based On Selection: 9
Basanta Kumar Biswal
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,045
1,910
0.934
Environmental Biotechnology
Nature-based Solutions
Antimicrobial resistance
Denitrification
LIBs
* Total Citation Counts Rankings
Rankings
473,579
2,879
426
Ranking Based On Selection: 10
Wenwei Che
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,801
1,025
0.569
Air pollution
exposure modeling
microenvironment air quality characterization
vehicle emission
* Total Citation Counts Rankings
Rankings
526,508
3,068
457
Ranking Based On Selection: 11
Xingcheng Lu
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,538
1,356
0.882
Air Quality
3D Numerical Modeling
Remote Sensing
Machine Learning
Environmental Science
* Total Citation Counts Rankings
Rankings
547,958
3,153
468
Ranking Based On Selection: 12
Jingyi Jiang
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,443
1,364
0.945
water treatment
disinfection byproducts
micropollutants
adsorption
* Total Citation Counts Rankings
Rankings
603,523
3,391
501
Ranking Based On Selection: 13
Michelle KM Wong
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,232
341
0.277
Environmental Policy
Stakeholders Engagement
Environmental Communications
Ecology & Microbiology
* Total Citation Counts Rankings
Rankings
616,003
3,446
507
Ranking Based On Selection: 14
Meng Xu
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,189
790
0.664
Environmental engineering
wastewater treatment
* Total Citation Counts Rankings
Rankings
634,567
3,499
513
Ranking Based On Selection: 15
Xiaofan Zhao
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,129
908
0.804
climate change
environmental governance
policy implementation
energy efficiency
regulatory compliance
* Total Citation Counts Rankings
Rankings
638,359
3,514
516
Ranking Based On Selection: 16
Ho Yin Ching
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,118
581
0.520
Waste management
Sludge treatment and Environmental Impact Assessment
* Total Citation Counts Rankings
Rankings
649,311
3,551
520
Ranking Based On Selection: 17
Ji Dai
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,084
955
0.881
Wastewater treatment
urine separation and treatment
life cycle assessment
* Total Citation Counts Rankings
Rankings
743,405
3,877
566
Ranking Based On Selection: 18
Jason Lim Coo
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
835
674
0.807
Unsaturated soil
Geoenvironmental engineering
* Total Citation Counts Rankings
Rankings
767,278
3,960
583
Ranking Based On Selection: 19
Tesfaldet Gebreegziabher
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
781
566
0.725
Waste to energy
Modeling
simulation and optimization
Heat Integration
Pinch Analysis
* Total Citation Counts Rankings
Rankings
947,900
4,577
686
Ranking Based On Selection: 20
Fengyuan Chen
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
463
461
0.996
marine environmental science
* Total Citation Counts Rankings
Rankings
1,380,923
6,277
1,249
Ranking Based On Selection: 21
Jiadong Peng
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161
161
1.000
water treatment
water reuse
* Total Citation Counts Rankings
Rankings
1,811,127
7,810
1,707
Ranking Based On Selection: 22
Stefano Mingolla
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52
52
1.000
environmental science
environmental economics
net-zero agriculture
energy system modeling
* Total Citation Counts Rankings
Rankings
2,086,126
8,548
1,894
Ranking Based On Selection: 23
Yu-De Pei
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18
18
1.000
stable isotope ecology
coral reef ecology
mesophotic coral ecosystems
* Total Citation Counts Rankings
Rankings
2,193,003
8,745
1,943
Ranking Based On Selection: 24
Zhonghao He
Hong Kong University of Science & Technology
Sai Kung District, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
Environmental Engineering