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
Water treatment and recovery
Membrane separation and fabrication
Disinfection and disinfection by-products
Torrefaction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,321
3,382
0.783
* Total Citation Counts Rankings
Ranking Based On Selection :2
Wastewater treatment
nanomaterials
catalyst
advanced oxidation processes.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,419
3,341
0.977
* Total Citation Counts Rankings
Ranking Based On Selection :3
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,309
2,698
0.815
* Total Citation Counts Rankings
Ranking Based On Selection :4
Environmental sustainability
Life cycle assessment
Water use efficiency
Water reuse
Water-Energy Nexus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,225
1,854
0.833
* Total Citation Counts Rankings
Ranking Based On Selection :5
Process Safety
Gas Explosion
Emergency Response
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,416
529
0.374
* Total Citation Counts Rankings
Ranking Based On Selection :6
Air pollution control
persistent organic pollutants
remediation
waste-to-energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,075
949
0.883
* Total Citation Counts Rankings
Ranking Based On Selection :7
Chemical biochemical
Bioprocess and Environmental Engineering
Water treatment biorheology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
559
396
0.708
* Total Citation Counts Rankings
Ranking Based On Selection :8
Water Resources Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
477
242
0.507
* Total Citation Counts Rankings
Ranking Based On Selection :9
Biochar
heavy metals
Marine Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
413
401
0.971
* Total Citation Counts Rankings
Ranking Based On Selection :10
Hydraulics
Fluid mechanics
Hydrology
Water Supply
Environmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
240
200
0.833
* Total Citation Counts Rankings
Ranking Based On Selection :11
Algal Biotechnology
Environmental Engineering
Nanotechnology
Bioprocess
Bioenergy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
229
229
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :12
Natural resource management
climate change
livelihoods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210
139
0.662
* Total Citation Counts Rankings
Ranking Based On Selection :13
Air pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
197
0.952
* Total Citation Counts Rankings
Ranking Based On Selection :14
mercury
adsorption
coal fired power plant
heavy metal
wastewater treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
192
191
0.995
* Total Citation Counts Rankings
Ranking Based On Selection :15
Climate change
Livelihoods
environmental governance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
138
0.826
* Total Citation Counts Rankings
Ranking Based On Selection :16
Wastewater treatment
Environmental Engineering
Heat Transfer
Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
148
125
0.845
* Total Citation Counts Rankings
Ranking Based On Selection :17
Environmental Epidemiology
allergy
asthma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
113
91
0.805
* Total Citation Counts Rankings
Ranking Based On Selection :18
Traditional Medicine
Public Health: Maternal Health
Sexual Reproductive Health
OHS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104
104
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :19
Chemical Engineering
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79
54
0.684
* Total Citation Counts Rankings
Ranking Based On Selection :20
Climate Change Adaptation
Spatial Analytics
Air and Water quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76
69
0.908
* Total Citation Counts Rankings
Ranking Based On Selection :21
Chemical Engineering
Environmental Engineering
Wastewater treatment
Inverse Fluidization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67
64
0.955
* Total Citation Counts Rankings
Ranking Based On Selection :22
Climate Change Communication
Political Communication and Media & Sexuality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
57
0.891
* Total Citation Counts Rankings
Ranking Based On Selection :23
water resources
non-communicable diseases
social sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21
19
0.905
* Total Citation Counts Rankings
Ranking Based On Selection :24
Environmental Engineering
Pollution Control Technology
Photocatalysis
Air Pollution Control
Water and Wastewater Treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3
0
0.000
Yi-Li Lin (林怡利)
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,321
3,382
0.783
Water treatment and recovery
Membrane separation and fabrication
Disinfection and disinfection by-products
Torrefaction
Thanh Binh Nguyen
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,419
3,341
0.977
Wastewater treatment
nanomaterials
catalyst
advanced oxidation processes.
Chang-Mao Hung
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,309
2,698
0.815
Environmental Engineering
Mengshan Lee
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,225
1,854
0.833
Environmental sustainability
Life cycle assessment
Water use efficiency
Water reuse
Water-Energy Nexus
Jenq Renn Chen
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,416
529
0.374
Process Safety
Gas Explosion
Emergency Response
Nicholas K Cheruiyot
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,075
949
0.883
Air pollution control
persistent organic pollutants
remediation
waste-to-energy
Anteneh Mesfin Yeneneh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
559
396
0.708
Chemical biochemical
Bioprocess and Environmental Engineering
Water treatment biorheology
Akbar Karimi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
477
242
0.507
Water Resources Management
Ravi Katiyar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
413
401
0.971
Biochar
heavy metals
Marine Environmental Engineering
Eugine Makaya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
240
200
0.833
Hydraulics
Fluid mechanics
Hydrology
Water Supply
Environmental engineering
Pitchurajan Krishna Perumal
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
229
229
1.000
Algal Biotechnology
Environmental Engineering
Nanotechnology
Bioprocess
Bioenergy
Mkhokheli Sithole
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210
139
0.662
Natural resource management
climate change
livelihoods
Duy-Hieu Nguyen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
197
0.952
Che-Jung Hsu
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
192
191
0.995
mercury
adsorption
coal fired power plant
heavy metal
wastewater treatment
Nqobizitha Dube
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
138
0.826
Climate change
Livelihoods
environmental governance
Saravanan Am
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
148
125
0.845
Wastewater treatment
Environmental Engineering
Heat Transfer
Renewable Energy
Vuyelwa Ndlovu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
113
91
0.805
Environmental Epidemiology
allergy
asthma
Nicholas Mudonhi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104
104
1.000
Traditional Medicine
Public Health: Maternal Health
Sexual Reproductive Health
OHS
Joefel Jessica Cansino Dumaran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79
54
0.684
Chemical Engineering
Environmental Engineering
Oliver Dube
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76
69
0.908
Climate Change Adaptation
Spatial Analytics
Air and Water quality
Karunya Sakhile
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67
64
0.955
Chemical Engineering
Environmental Engineering
Wastewater treatment
Inverse Fluidization
Mthokozisi Ndhlovu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
57
0.891
Climate Change Communication
Political Communication and Media & Sexuality
Norman Manyeruke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21
19
0.905
water resources
non-communicable diseases
social sciences
洪崇軒
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3
0
0.000
Environmental Engineering
Pollution Control Technology
Photocatalysis
Air Pollution Control
Water and Wastewater Treatment