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" (873,690 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
Chunjiang An
• spill response and remediation
waste management
environmental sustainability
physiochemical and biological treatment
con
Metrics
H-Index
i10 Index
Citation
50
159
7,763
* Rankings
Ranking Based On Selection: 3
Md Saifur Rahaman
Environmental Nanotechnology
Membrane Separations
Resource Recovery
Metrics
H-Index
i10 Index
Citation
35
62
4,411
Mahdieh G Faramarz
environmental engineering
PFAS contamination
sludge management
water and wastewater treatment
Metrics
H-Index
i10 Index
Citation
5
4
245
Nmsknawalage
Environmental sustainability
Environmental toxicology
Forest biology
Environmental Chemistry
Metrics
H-Index
i10 Index
Citation
5
3
105
Alireza Lotfollahzade Moghaddam
Hydrogen Production (Methane Pyrolysis)
Adsorption
Catalysis
DME
Microporous Materials
Metrics
H-Index
i10 Index
Citation
3
2
66

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Rankings
Ranking Based On Selection: 1
Catherine N Mulligan
Metrics
H-Index
i10 Index
Citation Counts
56
129
20,735
Rankings
Ranking Based On Selection: 2
Chunjiang An
Metrics
H-Index
i10 Index
Citation Counts
50
159
7,763
• spill response and remediation
waste management
environmental sustainability
physiochemical and biological treatment
con
Rankings
Ranking Based On Selection: 3
Md Saifur Rahaman
Metrics
H-Index
i10 Index
Citation Counts
35
62
4,411
Environmental Nanotechnology
Membrane Separations
Resource Recovery
Rankings
Ranking Based On Selection: 4
Alexandra Lesnikowski
Metrics
H-Index
i10 Index
Citation Counts
24
31
3,746
Rankings
Ranking Based On Selection: 5
Gregor Kos
Metrics
H-Index
i10 Index
Citation Counts
19
23
2,996
Rankings
Ranking Based On Selection: 6
Mahdieh G Faramarz
Metrics
H-Index
i10 Index
Citation Counts
5
4
245
environmental engineering
PFAS contamination
sludge management
water and wastewater treatment
Rankings
Ranking Based On Selection: 7
Pooya Abdolghader
Metrics
H-Index
i10 Index
Citation Counts
5
4
86
Indoor Air Quality
Aerosols
Exposure
Nanoparticles
Filtration
Rankings
Ranking Based On Selection: 8
Nmsknawalage
Metrics
H-Index
i10 Index
Citation Counts
5
3
105
Environmental sustainability
Environmental toxicology
Forest biology
Environmental Chemistry
Rankings
Ranking Based On Selection: 9
Esmaeel Kariminezhad
Metrics
H-Index
i10 Index
Citation Counts
5
5
140
Rankings
Ranking Based On Selection: 10
Alireza Lotfollahzade Moghaddam
Metrics
H-Index
i10 Index
Citation Counts
3
2
66
Hydrogen Production (Methane Pyrolysis)
Adsorption
Catalysis
DME
Microporous Materials

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Rankings
Ranking Based On Selection: 11
Shrabani Sarma
Metrics
H-Index
i10 Index
Citation Counts
1
0
2