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" (875,720 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: 1
Mohammad Ali Zazouli
Environmental health engineering
Water treatment
Solid waste management
Metrics
H-Index
i10 Index
Citation
42
112
5,461
* Rankings
Ranking Based On Selection: 2
Zabihollah Yousefi
environmental engineering
wastewater treatment
natural treatment
Metrics
H-Index
i10 Index
Citation
33
75
26,170
* Rankings
Ranking Based On Selection: 3
Reza Dehbandi
Microplastics
Environmental health
Medical geology
Environmental Geochemistry
Metrics
H-Index
i10 Index
Citation
19
23
1,258
Ramazan Ali Dianati Tilaki
Environmental Chemistry
Water Treatment
Waste water Treatment
Air pollution
Biotechnology
Metrics
H-Index
i10 Index
Citation
13
14
486
Seyedtaghi Mirmohammadi
Indoor Air Pollution
Human Exposure Assessment
Toxicology
Biomonitoring
Ergonomics
Metrics
H-Index
i10 Index
Citation
9
8
227
Rankings
Ranking Based On Selection: 1
Mohammad Ali Zazouli
Metrics
H-Index
i10 Index
Citation Counts
42
112
5,461
Environmental health engineering
Water treatment
Solid waste management
Rankings
Ranking Based On Selection: 2
Zabihollah Yousefi
Metrics
H-Index
i10 Index
Citation Counts
33
75
26,170
environmental engineering
wastewater treatment
natural treatment
Rankings
Ranking Based On Selection: 3
Reza Dehbandi
Metrics
H-Index
i10 Index
Citation Counts
19
23
1,258
Microplastics
Environmental health
Medical geology
Environmental Geochemistry
Rankings
Ranking Based On Selection: 5
Fathollah Gholami Borujeni
Metrics
H-Index
i10 Index
Citation Counts
16
21
1,008
Health Care waste
Health impact Assessment
Health risk assessment
Rankings
Ranking Based On Selection: 6
Ramazan Ali Dianati Tilaki
Metrics
H-Index
i10 Index
Citation Counts
13
14
486
Environmental Chemistry
Water Treatment
Waste water Treatment
Air pollution
Biotechnology
Rankings
Ranking Based On Selection: 8
Seyedtaghi Mirmohammadi
Metrics
H-Index
i10 Index
Citation Counts
9
8
227
Indoor Air Pollution
Human Exposure Assessment
Toxicology
Biomonitoring
Ergonomics
Rankings
Ranking Based On Selection: 9
Alireza Ala
Metrics
H-Index
i10 Index
Citation Counts
5
2
86
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