Citation Rankings
Highly Cited Researchers
National University of Science Highly Cited Researchers CitationEngineering & Technology / Environmental Science & Engineering Rankings (Sort by last 6 years Citation Index) 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.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Water Resources
Hydroinformatics
Hydrology
Multi-Criteria Decision Making
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,243
5,532
0.764
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Water treatment and recovery
Membrane separation and fabrication
Disinfection and disinfection by-products
Torrefaction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,389
3,448
0.786
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Wastewater treatment
nanomaterials
catalyst
advanced oxidation processes.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,486
3,408
0.978
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,346
2,734
0.817
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Environmentally friendly energy technologies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,348
2,460
0.566
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Environmental Engineering and Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,964
2,199
0.276
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
Environmental sustainability
Life cycle assessment
Water use efficiency
Water reuse
Water-Energy Nexus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,254
1,881
0.835
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Water treatment
membrane biofouling
biofilm
quorum sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,798
1,632
0.583
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Environmental science and engineering
electrochemical technology
fuel cells ...
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,600
1,408
0.391
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Environmental Engineering
Air Pollution Control Engineering
VOCs and Odor Control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,432
1,333
0.388
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
Air pollution control
persistent organic pollutants
remediation
waste-to-energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,095
969
0.885
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Earth System Science
Environmental Modeling
Sociohydrology
Water Quality
Wastewater Reuse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,079
889
0.824
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Process Safety
Gas Explosion
Emergency Response
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,427
540
0.378
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
Chemical biochemical
Bioprocess and Environmental Engineering
Water treatment biorheology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
573
410
0.716
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
Biochar
heavy metals
Marine Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
421
409
0.971
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Water Resources Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
477
242
0.507
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Algal Biotechnology
Environmental Engineering
Nanotechnology
Bioprocess
Bioenergy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
241
241
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
environmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
347
233
0.671
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Hydraulics
Fluid mechanics
Hydrology
Water Supply
Environmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
246
205
0.833
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
Air pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
215
205
0.953
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
mercury
adsorption
coal fired power plant
heavy metal
wastewater treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
200
199
0.995
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
Hydrological models
Climate change
Water resource management
Generative AI
Deep leaning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
260
189
0.727
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
SERS
Sensors
Nanomaterials
Environmental Nanoanalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
140
140
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
Climate change
Livelihoods
environmental governance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
166
137
0.825
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
Wastewater treatment
Environmental Engineering
Heat Transfer
Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
149
126
0.846
* Last 6 Years Citation Counts Rankings
Rankings
83,288
1,190
3
Ranking Based On Selection: 1
Eun Sung Chung
Seoul National University of Science & Technology
Taoyuan City, South Korea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,243
5,532
0.764
Water Resources
Hydroinformatics
Hydrology
Multi-Criteria Decision Making
* Last 6 Years Citation Counts Rankings
Rankings
148,325
702
10
Ranking Based On Selection: 2
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
4,389
3,448
0.786
Water treatment and recovery
Membrane separation and fabrication
Disinfection and disinfection by-products
Torrefaction
* Last 6 Years Citation Counts Rankings
Rankings
150,267
712
11
Ranking Based On Selection: 3
Thanh Binh Nguyen
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,486
3,408
0.978
Wastewater treatment
nanomaterials
catalyst
advanced oxidation processes.
* Last 6 Years Citation Counts Rankings
Rankings
192,154
971
12
Ranking Based On Selection: 4
Chang-Mao Hung
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,346
2,734
0.817
Environmental Engineering
* Last 6 Years Citation Counts Rankings
Rankings
214,984
3,707
2
Ranking Based On Selection: 5
Jae Woo Chung
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,348
2,460
0.566
Environmentally friendly energy technologies
* Last 6 Years Citation Counts Rankings
Rankings
241,198
1,275
51
Ranking Based On Selection: 6
Young Ku
National Taiwan University of Science & Technology
Taipei City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,964
2,199
0.276
Environmental Engineering and Technology
* Last 6 Years Citation Counts Rankings
Rankings
281,669
1,523
18
Ranking Based On Selection: 7
Mengshan Lee
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,254
1,881
0.835
Environmental sustainability
Life cycle assessment
Water use efficiency
Water reuse
Water-Energy Nexus
* Last 6 Years Citation Counts Rankings
Rankings
321,323
5,843
36
Ranking Based On Selection: 8
Hyun Suk Oh
Seoul National University of Science & Technology
Taoyuan City, South Korea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,798
1,632
0.583
Water treatment
membrane biofouling
biofilm
quorum sensing
* Last 6 Years Citation Counts Rankings
Rankings
366,327
2,081
7
Ranking Based On Selection: 9
Kuo-Lin Huang
National Pingtung University of Science & Technology
Pingtung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,600
1,408
0.391
Environmental science and engineering
electrochemical technology
fuel cells ...
* Last 6 Years Citation Counts Rankings
Rankings
383,604
7,011
44
Ranking Based On Selection: 10
Daekeun Kim
Seoul National University of Science & Technology
Taoyuan City, South Korea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,432
1,333
0.388
Environmental Engineering
Air Pollution Control Engineering
VOCs and Odor Control
* Last 6 Years Citation Counts Rankings
Rankings
491,765
2,921
28
Ranking Based On Selection: 11
Nicholas K Cheruiyot
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,095
969
0.885
Air pollution control
persistent organic pollutants
remediation
waste-to-energy
* Last 6 Years Citation Counts Rankings
Rankings
522,670
9,512
60
Ranking Based On Selection: 12
Hanseok Jeong
Seoul National University of Science & Technology
Taoyuan City, South Korea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,079
889
0.824
Earth System Science
Environmental Modeling
Sociohydrology
Water Quality
Wastewater Reuse
* Last 6 Years Citation Counts Rankings
Rankings
704,507
4,370
43
Ranking Based On Selection: 13
Jenq Renn Chen
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,427
540
0.378
Process Safety
Gas Explosion
Emergency Response
* Last 6 Years Citation Counts Rankings
Rankings
813,794
131
16
Ranking Based On Selection: 14
Anteneh Mesfin Yeneneh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
573
410
0.716
Chemical biochemical
Bioprocess and Environmental Engineering
Water treatment biorheology
* Last 6 Years Citation Counts Rankings
Rankings
815,189
5,102
7
Ranking Based On Selection: 15
Ravi Katiyar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
421
409
0.971
Biochar
heavy metals
Marine Environmental Engineering
* Last 6 Years Citation Counts Rankings
Rankings
1,044,542
678
26
Ranking Based On Selection: 16
Akbar Karimi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
477
242
0.507
Water Resources Management
* Last 6 Years Citation Counts Rankings
Rankings
1,047,867
6,542
63
Ranking Based On Selection: 17
Pitchurajan Krishna Perumal
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
241
241
1.000
Algal Biotechnology
Environmental Engineering
Nanotechnology
Bioprocess
Bioenergy
* Last 6 Years Citation Counts Rankings
Rankings
1,062,117
18,575
137
Ranking Based On Selection: 18
Tae-Jin Lee
Seoul National University of Science & Technology
Taoyuan City, South Korea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
347
233
0.671
environmental engineering
* Last 6 Years Citation Counts Rankings
Rankings
1,120,889
287
37
Ranking Based On Selection: 19
Eugine Makaya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
246
205
0.833
Hydraulics
Fluid mechanics
Hydrology
Water Supply
Environmental engineering
* Last 6 Years Citation Counts Rankings
Rankings
1,121,262
6,940
11
Ranking Based On Selection: 20
Duy-Hieu Nguyen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
215
205
0.953
* Last 6 Years Citation Counts Rankings
Rankings
1,135,384
7,014
66
Ranking Based On Selection: 21
Che-Jung Hsu
National Kaohsiung University of Science and Technology
Kaohsiung City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
200
199
0.995
mercury
adsorption
coal fired power plant
heavy metal
wastewater treatment
* Last 6 Years Citation Counts Rankings
Rankings
1,158,057
20,017
149
Ranking Based On Selection: 22
Jungjin Kim
Seoul National University of Science & Technology
Taoyuan City, South Korea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
260
189
0.727
Hydrological models
Climate change
Water resource management
Generative AI
Deep leaning
* Last 6 Years Citation Counts Rankings
Rankings
1,299,340
7,822
244
Ranking Based On Selection: 23
Sintayehu Leshe
National Taiwan University of Science & Technology
Taipei City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
140
140
1.000
SERS
Sensors
Nanomaterials
Environmental Nanoanalysis
* Last 6 Years Citation Counts Rankings
Rankings
1,307,922
425
66
Ranking Based On Selection: 24
Nqobizitha Dube
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
166
137
0.825
Climate change
Livelihoods
environmental governance
* Last 6 Years Citation Counts Rankings
Rankings
1,346,129
889
46
Ranking Based On Selection: 25
Saravanan Am
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
149
126
0.846
Wastewater treatment
Environmental Engineering
Heat Transfer
Renewable Energy