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.

Lee Blaney
environmental engineering
environmental chemistry
contaminants of emerging concern
ion exchange
Metrics
H-Index
i10 Index
Citation
35
64
5,308
Sahar Souizi
Environmental Engineering
Chemical Engineering
Nutrient recovery
Wastewater Treatment
Metrics
H-Index
i10 Index
Citation
2
1
29
Rankings
Ranking Based On Selection: 1
Upal Ghosh
Metrics
H-Index
i10 Index
Citation Counts
43
79
7,270
Rankings
Ranking Based On Selection: 2
Lee Blaney
Metrics
H-Index
i10 Index
Citation Counts
35
64
5,308
environmental engineering
environmental chemistry
contaminants of emerging concern
ion exchange
Rankings
Ranking Based On Selection: 3
Ruben Delgado
Metrics
H-Index
i10 Index
Citation Counts
13
15
684
Rankings
Ranking Based On Selection: 4
Ana Prados
Metrics
H-Index
i10 Index
Citation Counts
12
12
1,137
Rankings
Ranking Based On Selection: 5
Donya Hamidi
Metrics
H-Index
i10 Index
Citation Counts
5
4
199
Environmental Engineering
Contaminants of Emerging Concern
Ion Exchange
Rankings
Ranking Based On Selection: 7
Brennan Smith
Metrics
H-Index
i10 Index
Citation Counts
4
2
90
Rankings
Ranking Based On Selection: 9
Sahar Souizi
Metrics
H-Index
i10 Index
Citation Counts
2
1
29
Environmental Engineering
Chemical Engineering
Nutrient recovery
Wastewater Treatment