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" (873,864 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
Ahmad Jonidi Jafari
environmental health
air pollution
environmental toxicology
occupational health
Metrics
H-Index
i10 Index
Citation
52
208
10,075
* Rankings
Ranking Based On Selection :2
Mahdi Farzadkia
Solid waste management
Wastewater treatment
Sludge and Biosolid management
Metrics
H-Index
i10 Index
Citation
50
184
8,917
* Rankings
Ranking Based On Selection :4
Mitra Gholami
Environmental Sciences
Membrane filtration
Industrial wastewater
Metrics
H-Index
i10 Index
Citation
48
151
7,186
* Rankings
Ranking Based On Selection :5
Majid Kermani
Air Pollution
Air Quality
Environmental Health
Exposure Assessment
Health Impact assessment
Metrics
H-Index
i10 Index
Citation
39
139
5,346
Hasan Pasalari
Waste management
Quantitative microbial risk assessment
Anaerobic Digestion
Energy Recovery
Electrochemical Oxidation
Metrics
H-Index
i10 Index
Citation
25
32
1,955
Rankings
Ranking Based On Selection: 1
Ahmad Jonidi Jafari
Metrics
H-Index
i10 Index
Citation Counts
52
208
10,075
environmental health
air pollution
environmental toxicology
occupational health
Rankings
Ranking Based On Selection: 2
Mahdi Farzadkia
Metrics
H-Index
i10 Index
Citation Counts
50
184
8,917
Solid waste management
Wastewater treatment
Sludge and Biosolid management
Rankings
Ranking Based On Selection: 3
Roshanak Rezaei Kalantary
Metrics
H-Index
i10 Index
Citation Counts
50
138
7,627
Bioremediation
Water Treatment
Soil Pollution
Nanotechnology
Rankings
Ranking Based On Selection: 4
Mitra Gholami
Metrics
H-Index
i10 Index
Citation Counts
48
151
7,186
Environmental Sciences
Membrane filtration
Industrial wastewater
Rankings
Ranking Based On Selection: 5
Majid Kermani
Metrics
H-Index
i10 Index
Citation Counts
39
139
5,346
Air Pollution
Air Quality
Environmental Health
Exposure Assessment
Health Impact assessment
Rankings
Ranking Based On Selection: 6
Hasan Pasalari
Metrics
H-Index
i10 Index
Citation Counts
25
32
1,955
Waste management
Quantitative microbial risk assessment
Anaerobic Digestion
Energy Recovery
Electrochemical Oxidation
Rankings
Ranking Based On Selection: 7
Rasoul Yarahmadi
Metrics
H-Index
i10 Index
Citation Counts
19
42
1,345
Rankings
Ranking Based On Selection: 8
Abbas Abbasnia
Metrics
H-Index
i10 Index
Citation Counts
18
18
1,748
Rankings
Ranking Based On Selection: 9
Zahra Asadgol
Metrics
H-Index
i10 Index
Citation Counts
16
20
983