Citation Rankings
Highly Cited Researchers
asia 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
Water Treatment
Waste to Value-added Products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
94,452
39,930
0.423
* Total Citation Counts Rankings
Ranking Based On Selection :2
Environmental Soil Science & Biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92,583
58,259
0.629
* Total Citation Counts Rankings
Ranking Based On Selection :3
Environmental Engineering
Green Chemistry
Chemical Engineering
Water Treatment
Environmental
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,515
63,439
0.725
* Total Citation Counts Rankings
Ranking Based On Selection :4
Glacier energy and mass balance
Climate change at high altitude region
Glacier hydology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,740
35,214
0.431
* Total Citation Counts Rankings
Ranking Based On Selection :5
Photocatalysis
Solar fuel
Advanced oxidation process
Environmental chemistry
Environmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,778
28,541
0.372
* Total Citation Counts Rankings
Ranking Based On Selection :6
Groundwater
Hydrogeology
Hydrology
Earth Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,584
31,733
0.420
* Total Citation Counts Rankings
Ranking Based On Selection :7
Environmental analytical chemistry
Environmental monitoring
the fate of pollutants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,624
34,293
0.507
* Total Citation Counts Rankings
Ranking Based On Selection :8
Water Treatment Processes
Environmental Nanotechnology
Advanced Oxidation
Membrane Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,868
50,034
0.748
* Total Citation Counts Rankings
Ranking Based On Selection :9
Hydrological modeling and prediction
Surface water and groundwater interaction
Hydrological response to climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,192
36,641
0.599
* Total Citation Counts Rankings
Ranking Based On Selection :10
Environmental Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,527
51,313
0.924
* Total Citation Counts Rankings
Ranking Based On Selection :11
Environmental Chemistry
sustainable adsorbents
Biochar
Biochar use in water
soil & climate change mitigation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,293
27,088
0.508
* Total Citation Counts Rankings
Ranking Based On Selection :12
Envrionmental Biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,450
24,576
0.469
* Total Citation Counts Rankings
Ranking Based On Selection :13
environmental science
chemical engineering
water treatment
catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,036
31,834
0.612
* Total Citation Counts Rankings
Ranking Based On Selection :14
Industrial Wastewater Treatment
Water Quality
Environmental Monitoring
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,771
49,227
0.951
* Total Citation Counts Rankings
Ranking Based On Selection :15
Extreme weather and climate events
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,588
32,167
0.649
* Total Citation Counts Rankings
Ranking Based On Selection :16
Phytotoxicity and Phytoremidiation of heavy metals and industrial effluents
stress physiology
Environmental Science
biochar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,066
41,853
0.853
* Total Citation Counts Rankings
Ranking Based On Selection :17
Disinfection and DBPs
DBP precursors and characterization
nitrosamines
NOM
T&O
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,865
34,706
0.774
* Total Citation Counts Rankings
Ranking Based On Selection :18
Energy and environmental policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,811
26,823
0.599
* Total Citation Counts Rankings
Ranking Based On Selection :19
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 :20
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,896
28,702
0.654
* Total Citation Counts Rankings
Ranking Based On Selection :21
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 :22
Climate Change Economics
Ecological Economics
Emission Data Accounting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,896
30,840
0.754
* Total Citation Counts Rankings
Ranking Based On Selection :23
Emerging Contaminants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,003
28,260
0.706
* Total Citation Counts Rankings
Ranking Based On Selection :24
Environmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,999
24,082
0.602
* Total Citation Counts Rankings
Ranking Based On Selection :25
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,660
27,659
0.697
* Total Citation Counts Rankings
Rankings
3,460
1
1
Ranking Based On Selection: 1
Gordon Mckay
Hamad Bin Khalifa University
Ar-Rayyan, Qatar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
94,452
39,930
0.423
Water Treatment
Waste to Value-added Products
* Total Citation Counts Rankings
Rankings
3,593
67
1
Ranking Based On Selection: 2
Yong-Guan Zhu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92,583
58,259
0.629
Environmental Soil Science & Biogeochemistry
* Total Citation Counts Rankings
Rankings
3,966
9
2
Ranking Based On Selection: 3
Mika Sillanpää
King Saud University
Riyadh, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,515
63,439
0.725
Environmental Engineering
Green Chemistry
Chemical Engineering
Water Treatment
Environmental
* Total Citation Counts Rankings
Rankings
4,424
96
1
Ranking Based On Selection: 4
Shenghai Li （李生海）
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,740
35,214
0.431
Glacier energy and mass balance
Climate change at high altitude region
Glacier hydology
* Total Citation Counts Rankings
Rankings
4,972
52
1
Ranking Based On Selection: 5
Wonyong Choi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,778
28,541
0.372
Photocatalysis
Solar fuel
Advanced oxidation process
Environmental chemistry
Environmental engineering
* Total Citation Counts Rankings
Rankings
5,102
122
2
Ranking Based On Selection: 6
Wang Jinsheng（王金生）
Beijing Normal University
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,584
31,733
0.420
Groundwater
Hydrogeology
Hydrology
Earth Sciences
* Total Citation Counts Rankings
Rankings
6,110
161
1
Ranking Based On Selection: 7
Chen ling
Tongji University
Shanghai, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,624
34,293
0.507
Environmental analytical chemistry
Environmental monitoring
the fate of pollutants
* Total Citation Counts Rankings
Rankings
6,226
166
2
Ranking Based On Selection: 8
Jun Ma 马军
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,868
50,034
0.748
Water Treatment Processes
Environmental Nanotechnology
Advanced Oxidation
Membrane Technology
* Total Citation Counts Rankings
Rankings
7,214
200
2
Ranking Based On Selection: 9
Xi Chen
Hohai University
Nanjing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,192
36,641
0.599
Hydrological modeling and prediction
Surface water and groundwater interaction
Hydrological response to climate change
* Total Citation Counts Rankings
Rankings
8,419
56
1
Ranking Based On Selection: 10
Mohammad Malakootian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,527
51,313
0.924
* Total Citation Counts Rankings
Rankings
8,985
97
1
Ranking Based On Selection: 11
Dinesh Mohan
Jawaharlal Nehru University
New Delhi, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,293
27,088
0.508
Environmental Chemistry
sustainable adsorbents
Biochar
Biochar use in water
soil & climate change mitigation
* Total Citation Counts Rankings
Rankings
9,200
256
5
Ranking Based On Selection: 12
Lena Q Ma
Zhejiang University
Hangzhou, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,450
24,576
0.469
Envrionmental Biogeochemistry
* Total Citation Counts Rankings
Rankings
9,317
262
2
Ranking Based On Selection: 13
Xie Quan
Dalian University of Technology
Dalian, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,036
31,834
0.612
environmental science
chemical engineering
water treatment
catalysis
* Total Citation Counts Rankings
Rankings
9,391
67
2
Ranking Based On Selection: 14
Mehdi Ahmadi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,771
49,227
0.951
Industrial Wastewater Treatment
Water Quality
Environmental Monitoring
* Total Citation Counts Rankings
Rankings
10,073
296
1
Ranking Based On Selection: 15
Panmao Zhai
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,588
32,167
0.649
Extreme weather and climate events
climate change
* Total Citation Counts Rankings
Rankings
10,239
9
1
Ranking Based On Selection: 16
Shafaqat Ali
Government College University Faisalabad
Johor Bahru, Pakistan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,066
41,853
0.853
Phytotoxicity and Phytoremidiation of heavy metals and industrial effluents
stress physiology
Environmental Science
biochar
* Total Citation Counts Rankings
Rankings
11,765
363
27
Ranking Based On Selection: 17
Chao Chen
Tsinghua University
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,865
34,706
0.774
Disinfection and DBPs
DBP precursors and characterization
nitrosamines
NOM
T&O
* Total Citation Counts Rankings
Rankings
11,798
367
5
Ranking Based On Selection: 18
Yi-Ming Wei 魏一鸣
Beijing Institute of Technology
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,811
26,823
0.599
Energy and environmental policy
* Total Citation Counts Rankings
Rankings
11,978
95
25
Ranking Based On Selection: 19
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
12,204
380
32
Ranking Based On Selection: 20
余刚
Tsinghua University
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,896
28,702
0.654
* Total Citation Counts Rankings
Rankings
12,451
100
28
Ranking Based On Selection: 21
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
13,690
436
37
Ranking Based On Selection: 22
Dabo Guan 关大博
Tsinghua University
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,896
30,840
0.754
Climate Change Economics
Ecological Economics
Emission Data Accounting
* Total Citation Counts Rankings
Rankings
14,191
457
40
Ranking Based On Selection: 23
Gang Yu
Tsinghua University
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,003
28,260
0.706
Emerging Contaminants
* Total Citation Counts Rankings
Rankings
14,192
18
5
Ranking Based On Selection: 24
Hamidi Abdul Aziz
Universiti Sains Malaysia
Penang, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,999
24,082
0.602
Environmental engineering
* Total Citation Counts Rankings
Rankings
14,389
463
42
Ranking Based On Selection: 25
Junhua Li
Tsinghua University
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,660
27,659
0.697
Environmental Engineering