Citation Rankings
Highly Cited Researchers
Arab League 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 :76
Water
industrial wastewater
Pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,245
2,435
0.750
* Total Citation Counts Rankings
Ranking Based On Selection :77
Environmental Risk Assessment
Climate Change
Engineering Hydrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,210
1,543
0.481
* Total Citation Counts Rankings
Ranking Based On Selection :78
Marine: Biogeochemistry
Carbon & Nutrient Cycling
Ocean Acidification
CCS
Coral Reef Restoration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,197
1,474
0.461
* Total Citation Counts Rankings
Ranking Based On Selection :79
Modelling of Transport and Reacting Phenomena (Air Quality
Risk Assessment
Solar Thermochemical)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,210
2,051
0.639
* Total Citation Counts Rankings
Ranking Based On Selection :80
Environment
Soil Remediation
Water Treatment
Heavy metals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,131
987
0.315
* Total Citation Counts Rankings
Ranking Based On Selection :81
Civil and Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,104
1,570
0.506
* Total Citation Counts Rankings
Ranking Based On Selection :82
Urban Sustainability
Atmospheric Chemistry
Schumann Resonances
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,085
709
0.230
* Total Citation Counts Rankings
Ranking Based On Selection :83
Membrane fabrication
Desalination
Nanofiber
Nanomaterials
Water treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,950
2,482
0.841
* Total Citation Counts Rankings
Ranking Based On Selection :84
Materials Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,954
2,429
0.822
* Total Citation Counts Rankings
Ranking Based On Selection :85
Water Treatment
Environmental Remediation
Sustainability
Nutrient Recovery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,906
1,198
0.412
* Total Citation Counts Rankings
Ranking Based On Selection :86
Biofiltration
Air Pollution Control
Waste Management and Control
Bioreactor Modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,882
680
0.236
* Total Citation Counts Rankings
Ranking Based On Selection :87
Desalination
Membrane Distillation
HDH
Combustion
Heat transfer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,988
2,821
0.944
* Total Citation Counts Rankings
Ranking Based On Selection :88
Water treatment
Desalination processes
Membrane technology
Dissolved air flotation Jojoba oil
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,848
1,233
0.433
* Total Citation Counts Rankings
Ranking Based On Selection :89
MXenes
Graphene
Heterostructures
Thin Film devices for energy conversion and energy storage
Nanomaterials synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,832
2,303
0.813
* Total Citation Counts Rankings
Ranking Based On Selection :90
Ornamental plants
Medicinal and aromatic plants
environmental stresses
plant physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,814
2,226
0.791
* Total Citation Counts Rankings
Ranking Based On Selection :91
Chemical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,736
1,587
0.580
* Total Citation Counts Rankings
Ranking Based On Selection :92
Water & wastewater treatment and reuse
Membrane separation technology
Water Desalination
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,668
1,713
0.642
* Total Citation Counts Rankings
Ranking Based On Selection :93
remote sensing
freeze thaw
climate change
vegetation index
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,634
1,824
0.692
* Total Citation Counts Rankings
Ranking Based On Selection :94
Groundwater
Groundwater modeling
Water Resources Management
Slatwater Intrusion
Transboundary Aquifers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,628
2,218
0.844
* Total Citation Counts Rankings
Ranking Based On Selection :95
Chemical and environmental engineering
Flow and mixing of complex fluids
Computational fluid dynamics
fluid flow
nano techno
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,542
2,538
0.998
* Total Citation Counts Rankings
Ranking Based On Selection :96
Environmental Hydrology
Environmental pollution
Soil and water pollution
Water quality assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,551
1,802
0.706
* Total Citation Counts Rankings
Ranking Based On Selection :97
Water resources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,549
1,645
0.645
* Total Citation Counts Rankings
Ranking Based On Selection :98
Water Resources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,495
1,693
0.679
* Total Citation Counts Rankings
Ranking Based On Selection :99
Waste valorization
Biorefinery
Biofuel
Bioplastic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,513
2,151
0.856
* Total Citation Counts Rankings
Ranking Based On Selection :100
Environmental and Organic Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,474
1,207
0.488
* Total Citation Counts Rankings
Rankings
303,982
1,207
136
Ranking Based On Selection: 76
Talal Almeelbi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,245
2,435
0.750
Water
industrial wastewater
Pollution
* Total Citation Counts Rankings
Rankings
306,770
180
2
Ranking Based On Selection: 77
Omar Ali Al Khashman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,210
1,543
0.481
Environmental Risk Assessment
Climate Change
Engineering Hydrology
* Total Citation Counts Rankings
Rankings
307,772
490
28
Ranking Based On Selection: 78
Henrik Stahl
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,197
1,474
0.461
Marine: Biogeochemistry
Carbon & Nutrient Cycling
Ocean Acidification
CCS
Coral Reef Restoration
* Total Citation Counts Rankings
Rankings
306,754
296
7
Ranking Based On Selection: 79
Konstantinos E Kakosimos
Texas A&M University at Qatar
Ar-Rayyan, Qatar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,210
2,051
0.639
Modelling of Transport and Reacting Phenomena (Air Quality
Risk Assessment
Solar Thermochemical)
* Total Citation Counts Rankings
Rankings
313,179
203
10
Ranking Based On Selection: 80
Laith Hamdan Hawal
Mustansiriyah University
Baghdad, Iraq
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,131
987
0.315
Environment
Soil Remediation
Water Treatment
Heavy metals
* Total Citation Counts Rankings
Rankings
315,402
900
35
Ranking Based On Selection: 81
Emad Elmolla
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,104
1,570
0.506
Civil and Environmental Engineering
* Total Citation Counts Rankings
Rankings
317,060
509
30
Ranking Based On Selection: 82
Robert Boldi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,085
709
0.230
Urban Sustainability
Atmospheric Chemistry
Schumann Resonances
* Total Citation Counts Rankings
Rankings
328,964
1,339
276
Ranking Based On Selection: 83
M Obaid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,950
2,482
0.841
Membrane fabrication
Desalination
Nanofiber
Nanomaterials
Water treatment
* Total Citation Counts Rankings
Rankings
328,622
325
67
Ranking Based On Selection: 84
Said Mansour
Hamad Bin Khalifa University
Ar-Rayyan, Qatar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,954
2,429
0.822
* Total Citation Counts Rankings
Rankings
333,025
226
18
Ranking Based On Selection: 85
Mahmoud Wazne
Lebanese American University
Beirut, Lebanon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,906
1,198
0.412
Water Treatment
Environmental Remediation
Sustainability
Nutrient Recovery
* Total Citation Counts Rankings
Rankings
335,204
539
49
Ranking Based On Selection: 86
Zarook M Shareefdeen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,882
680
0.236
Biofiltration
Air Pollution Control
Waste Management and Control
Bioreactor Modeling
* Total Citation Counts Rankings
Rankings
325,490
1,316
119
Ranking Based On Selection: 87
Dahiru Lawal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,988
2,821
0.944
Desalination
Membrane Distillation
HDH
Combustion
Heat transfer
* Total Citation Counts Rankings
Rankings
338,446
217
3
Ranking Based On Selection: 88
Habis Al Zoubi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,848
1,233
0.433
Water treatment
Desalination processes
Membrane technology
Dissolved air flotation Jojoba oil
* Total Citation Counts Rankings
Rankings
339,957
335
71
Ranking Based On Selection: 89
Adnan Ali
Hamad Bin Khalifa University
Ar-Rayyan, Qatar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,832
2,303
0.813
MXenes
Graphene
Heterostructures
Thin Film devices for energy conversion and energy storage
Nanomaterials synthesis
* Total Citation Counts Rankings
Rankings
341,705
1,051
63
Ranking Based On Selection: 90
Fahmy Hassan
Tanta University
Tanta, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,814
2,226
0.791
Ornamental plants
Medicinal and aromatic plants
environmental stresses
plant physiology
* Total Citation Counts Rankings
Rankings
349,670
226
2
Ranking Based On Selection: 91
Abbas H Sulaymon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,736
1,587
0.580
* Total Citation Counts Rankings
Rankings
356,669
239
17
Ranking Based On Selection: 92
Khalid Bani Melhem
Hashemite University
Zarqa, Jordan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,668
1,713
0.642
Water & wastewater treatment and reuse
Membrane separation technology
Water Desalination
* Total Citation Counts Rankings
Rankings
360,338
594
127
Ranking Based On Selection: 93
Youngwook Kim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,634
1,824
0.692
remote sensing
freeze thaw
climate change
vegetation index
* Total Citation Counts Rankings
Rankings
360,981
1,144
72
Ranking Based On Selection: 94
Ahmed Sefelnasr
Assiut University
Asyut, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,628
2,218
0.844
Groundwater
Groundwater modeling
Water Resources Management
Slatwater Intrusion
Transboundary Aquifers
* Total Citation Counts Rankings
Rankings
370,442
253
16
Ranking Based On Selection: 95
Zainab T Al-Sharify
Mustansiriyah University
Baghdad, Iraq
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,542
2,538
0.998
Chemical and environmental engineering
Flow and mixing of complex fluids
Computational fluid dynamics
fluid flow
nano techno
* Total Citation Counts Rankings
Rankings
369,441
252
16
Ranking Based On Selection: 96
Abdul Hameed M Jawad Alobaidy
University of Technology Iraq
Gyeongsan, Iraq
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,551
1,802
0.706
Environmental Hydrology
Environmental pollution
Soil and water pollution
Water quality assessment
* Total Citation Counts Rankings
Rankings
369,687
1,190
22
Ranking Based On Selection: 97
Bahaa Khalil
Helwan University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,549
1,645
0.645
* Total Citation Counts Rankings
Rankings
375,909
1,607
39
Ranking Based On Selection: 98
Abdul Razzaq Ghumman
Qassim University
Buraydah, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,495
1,693
0.679
* Total Citation Counts Rankings
Rankings
373,816
143
97
Ranking Based On Selection: 99
Sivakumar Nallusamy
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,513
2,151
0.856
Waste valorization
Biorefinery
Biofuel
Bioplastic
* Total Citation Counts Rankings
Rankings
378,375
1,228
75
Ranking Based On Selection: 100
Alaa Mostafa
Alexandria University
Alexandria, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,474
1,207
0.488
Environmental and Organic Geochemistry