Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (998,570 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 2
Zarook M Shareefdeen
Biofiltration
Air Pollution Control
Waste Management and Control
Bioreactor Modeling
Metrics
H-Index
i10 Index
Citation
23
40
2,915
* Rankings
Ranking Based On Selection: 3
Ahmed Aidan
Process dynamics and control
Simulation. Wastewater
Water technologies. Corrosion. Air pollution using bio-filtration and Rene
Metrics
H-Index
i10 Index
Citation
17
28
1,239
* Rankings
Ranking Based On Selection: 4
Fatin Samara
Climate Change
Environmental Toxicology and Chemistry
Persistent Organic Pollutants
Metrics
H-Index
i10 Index
Citation
16
26
1,038
* Rankings
Ranking Based On Selection: 5
Mohamed Yehia Abouleish|MYZ Abouleish, MY Zakaria Abouleish, MYA Eish
chlorination breakpoint
Bottled water Fluoride and Nitrate and Nitrite
Indoor Air Quality
COVID-19
herbal products
Metrics
H-Index
i10 Index
Citation
14
18
665
Rahul Gawai
Digital Twins
GIS and Remote Sensing
Hydrology
Environmental Science
Deep Learning
Metrics
H-Index
i10 Index
Citation
4
1
59
Rankings
Ranking Based On Selection: 1
Samy Elmahdy
Metrics
H-Index
i10 Index
Citation Counts
24
33
1,314
Rankings
Ranking Based On Selection: 2
Zarook M Shareefdeen
Metrics
H-Index
i10 Index
Citation Counts
23
40
2,915
Biofiltration
Air Pollution Control
Waste Management and Control
Bioreactor Modeling
Rankings
Ranking Based On Selection: 3
Ahmed Aidan
Metrics
H-Index
i10 Index
Citation Counts
17
28
1,239
Process dynamics and control
Simulation. Wastewater
Water technologies. Corrosion. Air pollution using bio-filtration and Rene
Rankings
Ranking Based On Selection: 4
Fatin Samara
Metrics
H-Index
i10 Index
Citation Counts
16
26
1,038
Climate Change
Environmental Toxicology and Chemistry
Persistent Organic Pollutants
Rankings
Ranking Based On Selection: 5
chlorination breakpoint
Bottled water Fluoride and Nitrate and Nitrite
Indoor Air Quality
COVID-19
herbal products
Rankings
Ranking Based On Selection: 6
Daniel Simonet
Metrics
H-Index
i10 Index
Citation Counts
13
17
939
Rankings
Ranking Based On Selection: 7
Rahul Gawai
Metrics
H-Index
i10 Index
Citation Counts
4
1
59
Digital Twins
GIS and Remote Sensing
Hydrology
Environmental Science
Deep Learning
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