Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :1
Waste management
Water resources management
Air pollution control
Climate change and sustainable development
Environmental i
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
185
130
0.703
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :2
Conservation of energy
thermal comfort and indoor air quality
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
153
119
0.778
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :3
Occupational Health
Migrant Workers Health
Built Environment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
55
0.873
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :4
water quality
eutrophication
bayesian modelling
environmental remote sensing & GIS
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
58
52
0.897
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :5
Systems Optimization
Energy Infrastructure
Bilevel Optimization
Macro-Energy Systems
Interaction of Food/Energy/Water System
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
50
0.926
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :6
Environmental Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
33
0.589
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :7
Water Treatment
Environmental Remediation
Sustainability
Nutrient Recovery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
32
0.842
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :8
Water Treatment
Advanced Oxidation Processes
Instrumental Analysis
Spectroscopy
Forensic Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
31
0.756
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :9
marine biology
community ecology
diseases
coral reefs
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
31
0.775
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :10
Environmental risk
uncertainties
climate policy
innovations and global capital markets
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
30
0.435
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :11
Remote Sensing
GIS
Geology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
33
25
0.758
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :12
Climate
Atmospheric science
Atmospheric aerosol
stratosphere
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
24
0.960
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :13
environmental policy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
23
0.590
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :14
Environmental Engineering
Anaerobic Digestion
Water Reuse
Microbiology/Biotechnology
Emerging Contaminants
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
23
0.958
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :15
Wastewater Treatment - Rural Sanitation - Phytoremediation Technology - Environmental Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
21
0.808
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :16
environmental politics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
20
0.444
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :17
artificial intelligence
watermarking
data hiding
image and video processing
big data
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
20
0.588
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :18
Electrochemistry
Energy Storage
Nanomaterials
water splitting
Electrochemical sensors
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :19
Submarine groundwater discharge
groundwater-surface water interactions
pollution fate and transport
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
19
0.864
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :20
Air Pollution
Climate Change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
18
0.486
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :21
Climate Change
Environmental Toxicology and Chemistry
Persistent Organic Pollutants
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
18
0.783
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :22
Global Environmental Politics
Politics of Technology
Climate Change
International Relations
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
18
0.857
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :23
eco-evolutionary dynamics
community ecology
community assembly
ecological forecasting
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
17
0.810
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :24
Biofiltration
Air Pollution Control
Waste Management and Control
Bioreactor Modeling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
15
0.405
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :25
Process dynamics and control
Simulation. Wastewater
Water technologies. Corrosion. Air pollution using bio-filtration and Rene
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
15
0.682
Mutasem El Fadel
American University of Beirut
Beirut, Lebanon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
185
130
0.703
Waste management
Water resources management
Air pollution control
Climate change and sustainable development
Environmental i
Kamel Ghali
American University of Beirut
Beirut, Lebanon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
153
119
0.778
Conservation of energy
thermal comfort and indoor air quality
Rima Habib
American University of Beirut
Beirut, Lebanon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
55
0.873
Occupational Health
Migrant Workers Health
Built Environment
Ibrahim Alameddine
American University of Beirut
Beirut, Lebanon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
58
52
0.897
water quality
eutrophication
bayesian modelling
environmental remote sensing & GIS
Sauleh Siddiqui
American University
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
50
0.926
Systems Optimization
Energy Infrastructure
Bilevel Optimization
Macro-Energy Systems
Interaction of Food/Energy/Water System
George M Ayoub
American University of Beirut
Beirut, Lebanon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
33
0.589
Environmental Engineering
Mahmoud Wazne
Lebanese American University
Beirut, Lebanon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
32
0.842
Water Treatment
Environmental Remediation
Sustainability
Nutrient Recovery
Antoine Ghauch
American University of Beirut
Beirut, Lebanon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
31
0.756
Water Treatment
Advanced Oxidation Processes
Instrumental Analysis
Spectroscopy
Forensic Science
Kiho Kim
American University
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
31
0.775
marine biology
community ecology
diseases
coral reefs
Alexander A Golub
American University
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
30
0.435
Environmental risk
uncertainties
climate policy
innovations and global capital markets
Samy Elmahdy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
33
25
0.758
Remote Sensing
GIS
Geology
Valentina Aquila
American University
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
24
0.960
Climate
Atmospheric science
Atmospheric aerosol
stratosphere
Daniel J Fiorino
American University
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
23
0.590
Moustapha Harb
Lebanese American University
Beirut, Lebanon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
23
0.958
Environmental Engineering
Anaerobic Digestion
Water Reuse
Microbiology/Biotechnology
Emerging Contaminants
Ahmed S El Gendy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
21
0.808
Wastewater Treatment - Rural Sanitation - Phytoremediation Technology - Environmental Engineering
Paul Wapner
American University
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
20
0.444
environmental politics
Ersin Elbaşi|Ersin Elbaşı, E. Elbasi, Elbasi E.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
20
0.588
artificial intelligence
watermarking
data hiding
image and video processing
big data
Nashaat Ahmed
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
Electrochemistry
Energy Storage
Nanomaterials
water splitting
Electrochemical sensors
KL Knee
American University
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
19
0.864
Submarine groundwater discharge
groundwater-surface water interactions
pollution fate and transport
Michael S Brody
American University
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
18
0.486
Air Pollution
Climate Change
Fatin Samara
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
18
0.783
Climate Change
Environmental Toxicology and Chemistry
Persistent Organic Pollutants
Simon Nicholson
American University
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
18
0.857
Global Environmental Politics
Politics of Technology
Climate Change
International Relations
Jelena H Pantel
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
17
0.810
eco-evolutionary dynamics
community ecology
community assembly
ecological forecasting
Zarook M Shareefdeen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
15
0.405
Biofiltration
Air Pollution Control
Waste Management and Control
Bioreactor Modeling
Ahmed Aidan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
15
0.682
Process dynamics and control
Simulation. Wastewater
Water technologies. Corrosion. Air pollution using bio-filtration and Rene