H-Index
Rankings
Arab League 1,027 Scientists H-Index Engineering & Technology / Environmental Science & Engineering Rankings - 2025
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* Total H Index Rankings
Ranking Based
On Selection: 1
Environmental Engineering
Green Chemistry
Chemical Engineering
Water Treatment
Environmental
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
137
110
0.803
* Total H Index Rankings
Ranking Based
On Selection: 2
Water Treatment
Waste to Value-added Products
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
133
86
0.647
* Total H Index Rankings
Ranking Based
On Selection: 3
Membrane technology for water and wastewater treatment
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
77
46
0.597
* Total H Index Rankings
Ranking Based
On Selection: 4
Water desalination
Renewable energy
Desalination economics
Innovative desalination technologies
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
71
56
0.789
* Total H Index Rankings
Ranking Based
On Selection: 5
Waste management
Water resources management
Air pollution control
Climate change and sustainable development
Environmental i
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
61
35
0.574
* Total H Index Rankings
Ranking Based
On Selection: 6
Environmental Sciences
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
59
50
0.847
* Total H Index Rankings
Ranking Based
On Selection: 7
Analytical and environmental chemistry
Environmental Remediation
Validation method in analytical chemistry
Remediation
Adsor
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
55
46
0.836
* Total H Index Rankings
Ranking Based
On Selection: 8
Electrochemistry
Physical Chemistry
Nanotechnology
Renewable Energy
Environmental Science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
42
0.792
* Total H Index Rankings
Ranking Based
On Selection: 9
Climate change ecology
Climate change vulnerability
Vegetation Science
Soil biodiversity
ITEX
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
52
46
0.885
* Total H Index Rankings
Ranking Based
On Selection: 10
Environmental Biotechnology
Microbial Electrochemical Systems
Aerobic Granular Sludge
Anammox
Resource Recovery
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
41
0.804
* Total H Index Rankings
Ranking Based
On Selection: 11
Water-Energy-Food nexus
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
31
0.608
* Total H Index Rankings
Ranking Based
On Selection: 12
Génie de l'Environnement
Génie des Procédés
Chimie de l'Environnement
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
29
0.569
* Total H Index Rankings
Ranking Based
On Selection: 13
Desalination
water treatment
environmental engineering
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
49
47
0.959
* Total H Index Rankings
Ranking Based
On Selection: 14
Climate
Climate Change
Impact of Climate Change in water resources and environment
climate extremes
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
49
41
0.837
* Total H Index Rankings
Ranking Based
On Selection: 15
Membranes
Wastewater treatment
Environmental science
Food Packaging
Waste to Energy
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
48
1.000
* Total H Index Rankings
Ranking Based
On Selection: 16
Energy
Sustainability
Integrated Assessment
Climate Change Mitigation
Water-Energy-Land Nexus
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
43
0.896
* Total H Index Rankings
Ranking Based
On Selection: 17
Antimicrobial Agents
Nanoformulation
Silver nanoparticles
Phosphate solubilization
Biofilm
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
43
0.896
* Total H Index Rankings
Ranking Based
On Selection: 18
Environmental Science
Reproductive Toxicology
Endocrine Disruption
Hepatotoxicity
Drug Toxicity
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
33
0.688
* Total H Index Rankings
Ranking Based
On Selection: 19
Water Treatment
Seawater Desalination
Wastewater Reuse
Reverse Osmosis
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
47
36
0.766
* Total H Index Rankings
Ranking Based
On Selection: 20
Sustainability
Built Environment
Life-Cycle Assessment
Climate Change
Resilient Infrastructure
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
46
45
0.978
* Total H Index Rankings
Ranking Based
On Selection: 21
Applied environmental microbiology
water quality
water reuse
antibiotic resistance
anaerobic processes
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
46
38
0.826
* Total H Index Rankings
Ranking Based
On Selection: 22
Environmental Science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
45
40
0.889
* Total H Index Rankings
Ranking Based
On Selection: 23
AI FL Security
Data-sharing Industry 4.0/5.0
SemCom Holographic Com
Metaverse
Multi-robot
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
44
40
0.909
* Total H Index Rankings
Ranking Based
On Selection: 24
CO2 capture and conversion
Water/wastewater treatment
Climate change
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
43
38
0.884
* Total H Index Rankings
Ranking Based
On Selection: 25
Conservation of energy
thermal comfort and indoor air quality
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
43
31
0.721
Mika Sillanpää
King Saud University
Riyadh, Saudi Arabia
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
137
110
0.803
Environmental Engineering
Green Chemistry
Chemical Engineering
Water Treatment
Environmental
Gordon Mckay
Hamad Bin Khalifa University
Ar-Rayyan, Qatar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
133
86
0.647
Water Treatment
Waste to Value-added Products
Simon Judd
Qatar University
Doha, Qatar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
77
46
0.597
Membrane technology for water and wastewater treatment
Ghaffour Noreddine
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
71
56
0.789
Water desalination
Renewable energy
Desalination economics
Innovative desalination technologies
Mutasem El Fadel
American University of Beirut
Beirut, Lebanon
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
61
35
0.574
Waste management
Water resources management
Air pollution control
Climate change and sustainable development
Environmental i
Ma Barakat
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
59
50
0.847
Environmental Sciences
Mohammad A Al Ghouti
Qatar University
Doha, Qatar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
55
46
0.836
Analytical and environmental chemistry
Environmental Remediation
Validation method in analytical chemistry
Remediation
Adsor
Iqbal Ismail
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
42
0.792
Electrochemistry
Physical Chemistry
Nanotechnology
Renewable Energy
Environmental Science
Juha M Alatalo
Qatar University
Doha, Qatar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
52
46
0.885
Climate change ecology
Climate change vulnerability
Vegetation Science
Soil biodiversity
ITEX
Pascal E Saikaly
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
41
0.804
Environmental Biotechnology
Microbial Electrochemical Systems
Aerobic Granular Sludge
Anammox
Resource Recovery
Zhaoyang Liu
Hamad Bin Khalifa University
Ar-Rayyan, Qatar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
31
0.608
Water-Energy-Food nexus
Hakim Lounici
Université de Bouira
Bouïra, Algeria
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
29
0.569
Génie de l'Environnement
Génie des Procédés
Chimie de l'Environnement
Khaled Elsaid
Texas A&M University at Qatar
Ar-Rayyan, Qatar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
49
47
0.959
Desalination
water treatment
environmental engineering
Mansour Almazroui
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
49
41
0.837
Climate
Climate Change
Impact of Climate Change in water resources and environment
climate extremes
Rambabu K
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
48
1.000
Membranes
Wastewater treatment
Environmental science
Food Packaging
Waste to Energy
Mohamad Hejazi
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
43
0.896
Energy
Sustainability
Integrated Assessment
Climate Change Mitigation
Water-Energy-Land Nexus
Oves M
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
43
0.896
Antimicrobial Agents
Nanoformulation
Silver nanoparticles
Phosphate solubilization
Biofilm
Mokhtar Ibrahim Yousef
Alexandria University
Alexandria, Egypt
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
33
0.688
Environmental Science
Reproductive Toxicology
Endocrine Disruption
Hepatotoxicity
Drug Toxicity
Muhammad Tariq Khan
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
47
36
0.766
Water Treatment
Seawater Desalination
Wastewater Reuse
Reverse Osmosis
Sami G Al Ghamdi
Hamad Bin Khalifa University
Ar-Rayyan, Qatar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
46
45
0.978
Sustainability
Built Environment
Life-Cycle Assessment
Climate Change
Resilient Infrastructure
Peiying Hong
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
46
38
0.826
Applied environmental microbiology
water quality
water reuse
antibiotic resistance
anaerobic processes
Rajeev Kumar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
45
40
0.889
Environmental Science
Saeed Hamood Alsamhi
IBB University
Ibb City, Yemen
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
44
40
0.909
AI FL Security
Data-sharing Industry 4.0/5.0
SemCom Holographic Com
Metaverse
Multi-robot
Abdelbaki Benamor
Qatar University
Doha, Qatar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
43
38
0.884
CO2 capture and conversion
Water/wastewater treatment
Climate change
Kamel Ghali
American University of Beirut
Beirut, Lebanon
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
43
31
0.721
Conservation of energy
thermal comfort and indoor air quality