Citation Rankings
Highly Cited Researchers

Engineering & Technology / Environmental Science & Engineering Highly Cited Researchers 41 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list 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
United States
Virender Sharma
Water Treatment
Environmental Science
Environmental Chemistry
Environmental Health
Environmental
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,960
23,645
0.514
* Total Citation Counts Rankings
Ranking Based On Selection: 2
United States
Mohanty Binayak P
water
hydrology
soil
modeling
remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,334
4,520
0.399
* Total Citation Counts Rankings
Ranking Based On Selection: 3
United States
Paul Montagna
Environmental science
Ecology
Marine science
Biological oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,471
3,258
0.311
* Total Citation Counts Rankings
Ranking Based On Selection: 4
United States
Shankar Chellam
water treatment
urban aerosols
Saharan dust
electrocoagulation
membrane filtration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,664
3,155
0.364
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Qatar
Khaled Elsaid
Desalination
water treatment
environmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,422
8,218
0.976
* Total Citation Counts Rankings
Ranking Based On Selection: 6
United States
Rabi Mohtar
Water-Energy-Food Security
WEF Nexus
Hydrology
Pedostructure
Science to Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,331
3,423
0.541
* Total Citation Counts Rankings
Ranking Based On Selection: 7
United States
Vaughn Bryant
Pollen
forensics
coprolites
paleoenvironmental studies
archaeololgy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,298
1,682
0.267
* Total Citation Counts Rankings
Ranking Based On Selection: 8
United States
Zivko L Nikolov
Bioprocess development Protein purification Process design and economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,216
1,174
0.189
* Total Citation Counts Rankings
Ranking Based On Selection: 9
United States
Sergio Capareda
Energy
air quality
waste management and machinery design and development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,815
3,216
0.553
* Total Citation Counts Rankings
Ranking Based On Selection: 10
United States
Hwise Rcn
water
water governance
water insecurity
water security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,597
4,415
0.960
* Total Citation Counts Rankings
Ranking Based On Selection: 11
United States
Michelle Annette Meyer
Environmental Sociology
Disaster
Emergency Management
Social Capital
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,388
3,345
0.762
* Total Citation Counts Rankings
Ranking Based On Selection: 12
United States
Eunsung Kan
environmental engineering
chemical engineering
bioengineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,300
3,255
0.757
* Total Citation Counts Rankings
Ranking Based On Selection: 14
United States
Bing Guo
solar power generation
photovoltaic soiling mitigation
dust
air quality
aerosol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,890
1,927
0.495
* Total Citation Counts Rankings
Ranking Based On Selection: 15
United States
Ron Griffin
water resource economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,623
535
0.148
* Total Citation Counts Rankings
Ranking Based On Selection: 16
United States
Walter Den
Water Resources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,378
1,910
0.565
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Qatar
Konstantinos E Kakosimos
Modelling of Transport and Reacting Phenomena (Air Quality
Risk Assessment
Solar Thermochemical)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,273
1,829
0.559
* Total Citation Counts Rankings
Ranking Based On Selection: 18
United States
Chao Fan
Disaster Adaptation
Infrastructure Equity
Digital Twins
Resilience
Environmental Justice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,493
2,433
0.976
* Total Citation Counts Rankings
Ranking Based On Selection: 19
United States
Bassel Daher
WEF Nexus
Decision Support Tools
Stakeholder Engagement
Collective Action
Governance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,217
1,662
0.750
* Total Citation Counts Rankings
Ranking Based On Selection: 20
United States
Naruki Hiranuma
ice nucleation
climate
aerosol
cloud
freezing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,019
1,029
0.510
* Total Citation Counts Rankings
Ranking Based On Selection: 21
United States
Erik Crosman
Environmental Science
Atmospheric Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,921
1,029
0.536
* Total Citation Counts Rankings
Ranking Based On Selection: 22
United States
Genny Carrillo
environmental health
air pollution
asthma
water
children health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,796
1,182
0.658
* Total Citation Counts Rankings
Ranking Based On Selection: 23
United States
Hua Zhang
Water Resources
Hydrology
Geospatial Analysis
Infrastructure Resilience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,764
944
0.535
* Total Citation Counts Rankings
Ranking Based On Selection: 24
United States
John Tracy
Water Resources
Environmental Restoration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,751
330
0.188
* Total Citation Counts Rankings
Ranking Based On Selection: 25
United States
Heng Cai
Geospatial Data Science
Human Dynamics
Disaster Resilience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,430
1,217
0.851
* Total Citation Counts Rankings
Rankings
11,698
United States
5,545
23
Ranking Based On Selection: 1
Virender Sharma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,960
23,645
0.514
Water Treatment
Environmental Science
Environmental Chemistry
Environmental Health
Environmental
* Total Citation Counts Rankings
Rankings
86,881
United States
35,257
267
Ranking Based On Selection: 2
Mohanty Binayak P
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,334
4,520
0.399
* Total Citation Counts Rankings
Rankings
95,334
United States
38,175
1
Ranking Based On Selection: 3
Paul Montagna
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,471
3,258
0.311
Environmental science
Ecology
Marine science
Biological oceanography
* Total Citation Counts Rankings
Rankings
118,326
United States
46,075
389
Ranking Based On Selection: 4
Shankar Chellam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,664
3,155
0.364
water treatment
urban aerosols
Saharan dust
electrocoagulation
membrane filtration
* Total Citation Counts Rankings
Rankings
122,159
Qatar
100
2
Ranking Based On Selection: 5
Khaled Elsaid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,422
8,218
0.976
* Total Citation Counts Rankings
Rankings
165,579
United States
61,279
548
Ranking Based On Selection: 6
Rabi Mohtar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,331
3,423
0.541
Water-Energy-Food Security
WEF Nexus
Hydrology
Pedostructure
Science to Policy
* Total Citation Counts Rankings
Rankings
166,421
United States
61,548
551
Ranking Based On Selection: 7
Vaughn Bryant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,298
1,682
0.267
Pollen
forensics
coprolites
paleoenvironmental studies
archaeololgy
* Total Citation Counts Rankings
Rankings
168,650
United States
62,271
564
Ranking Based On Selection: 8
Zivko L Nikolov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,216
1,174
0.189
Bioprocess development Protein purification Process design and economics
* Total Citation Counts Rankings
Rankings
180,285
United States
65,872
621
Ranking Based On Selection: 9
Sergio Capareda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,815
3,216
0.553
Energy
air quality
waste management and machinery design and development
* Total Citation Counts Rankings
Rankings
226,122
United States
79,617
757
Ranking Based On Selection: 10
Hwise Rcn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,597
4,415
0.960
* Total Citation Counts Rankings
Rankings
236,152
United States
82,520
791
Ranking Based On Selection: 11
Michelle Annette Meyer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,388
3,345
0.762
Environmental Sociology
Disaster
Emergency Management
Social Capital
* Total Citation Counts Rankings
Rankings
240,627
United States
83,813
810
Ranking Based On Selection: 12
Eunsung Kan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,300
3,255
0.757
environmental engineering
chemical engineering
bioengineering
* Total Citation Counts Rankings
Rankings
253,389
United States
87,589
854
Ranking Based On Selection: 13
James L Heilman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,067
629
0.155
* Total Citation Counts Rankings
Rankings
263,515
United States
90,481
889
Ranking Based On Selection: 14
Bing Guo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,890
1,927
0.495
solar power generation
photovoltaic soiling mitigation
dust
air quality
aerosol
* Total Citation Counts Rankings
Rankings
280,350
United States
95,328
947
Ranking Based On Selection: 15
Ron Griffin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,623
535
0.148
* Total Citation Counts Rankings
Rankings
297,666
United States
100,303
4
Ranking Based On Selection: 16
Walter Den
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,378
1,910
0.565
* Total Citation Counts Rankings
Rankings
305,686
Qatar
298
7
Ranking Based On Selection: 17
Konstantinos E Kakosimos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,273
1,829
0.559
Modelling of Transport and Reacting Phenomena (Air Quality
Risk Assessment
Solar Thermochemical)
* Total Citation Counts Rankings
Rankings
380,586
United States
123,381
1,211
Ranking Based On Selection: 18
Chao Fan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,493
2,433
0.976
Disaster Adaptation
Infrastructure Equity
Digital Twins
Resilience
Environmental Justice
* Total Citation Counts Rankings
Rankings
415,508
United States
132,894
1,293
Ranking Based On Selection: 19
Bassel Daher
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,217
1,662
0.750
WEF Nexus
Decision Support Tools
Stakeholder Engagement
Collective Action
Governance
* Total Citation Counts Rankings
Rankings
444,897
United States
140,903
6
Ranking Based On Selection: 20
Naruki Hiranuma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,019
1,029
0.510
* Total Citation Counts Rankings
Rankings
460,848
United States
145,193
7
Ranking Based On Selection: 21
Erik Crosman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,921
1,029
0.536
* Total Citation Counts Rankings
Rankings
482,633
United States
151,046
1,443
Ranking Based On Selection: 22
Genny Carrillo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,796
1,182
0.658
environmental health
air pollution
asthma
water
children health
* Total Citation Counts Rankings
Rankings
488,747
United States
152,617
32
Ranking Based On Selection: 23
Hua Zhang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,764
944
0.535
Water Resources
Hydrology
Geospatial Analysis
Infrastructure Resilience
* Total Citation Counts Rankings
Rankings
491,356
United States
153,277
1,460
Ranking Based On Selection: 24
John Tracy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,751
330
0.188
* Total Citation Counts Rankings
Rankings
559,672
United States
171,256
1,607
Ranking Based On Selection: 25
Heng Cai
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,430
1,217
0.851