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.
Environmental Science
Reproductive Toxicology
Endocrine Disruption
Hepatotoxicity
Drug Toxicity
Metrics
H-Index
i10 Index
Citation
48
94
10,589
* Rankings
Ranking Based On Selection :2
Environmental and Organic Geochemistry
Metrics
H-Index
i10 Index
Citation
26
50
2,474
* Rankings
Ranking Based On Selection :3
climate change
remote sensing
space physics
Metrics
H-Index
i10 Index
Citation
25
39
2,423
* Rankings
Ranking Based On Selection :4
Desalination
Water and wastewater Engineering
Metrics
H-Index
i10 Index
Citation
20
25
1,531
* Rankings
Ranking Based On Selection :5
Sedimentary Rocks and Environmental studies
Metrics
H-Index
i10 Index
Citation
19
31
2,167
* Rankings
Ranking Based On Selection :6
Environmental Sciences
Metrics
H-Index
i10 Index
Citation
15
21
1,389
* Rankings
Ranking Based On Selection :7
Environmental Physiology and Toxicology
Metrics
H-Index
i10 Index
Citation
14
25
617
* Rankings
Ranking Based On Selection :8
Enviromental Eng.
Water Pollution
petrochemical Eng
Petroleum Eng
Metrics
H-Index
i10 Index
Citation
12
15
847
* Rankings
Ranking Based On Selection :9
Materials Science
Polymer Chemistry
Nanomaterials Synthesis
Environmental Science
Metrics
H-Index
i10 Index
Citation
9
9
325
* Rankings
Ranking Based On Selection :10
environmental Science
Metrics
H-Index
i10 Index
Citation
9
8
238
* Rankings
Ranking Based On Selection :11
Hydraulics
Water Resources Systems
Environmental Engineering
Artificial Intelligence
Civil Engineering
Metrics
H-Index
i10 Index
Citation
8
7
207
* Rankings
Ranking Based On Selection :12
Environmental Sciences / Marine Micropaleontology
Metrics
H-Index
i10 Index
Citation
7
6
747
* Rankings
Ranking Based On Selection :13
Environmental Engineering
Water and wastewater treatment
Desalination
Membrane Technology
Metrics
H-Index
i10 Index
Citation
7
5
203
* Rankings
Ranking Based On Selection :14
Pedology
Remote sensing
GIS
Land evaluation
Land use analysis and climate change
Metrics
H-Index
i10 Index
Citation
6
6
812
* Rankings
Ranking Based On Selection :15
Nanotechnology
Environmental sciences
Metrics
H-Index
i10 Index
Citation
5
5
201
* Rankings
Ranking Based On Selection :16
chemistry and environmental science
Metrics
H-Index
i10 Index
Citation
5
2
123
* Rankings
Ranking Based On Selection :17
Environment Health
Metrics
H-Index
i10 Index
Citation
5
1
67
* Rankings
Ranking Based On Selection :18
Environmental Sciences
Biostatistics
Population Ecology
Soil Biology
Metrics
H-Index
i10 Index
Citation
4
2
41
* Rankings
Ranking Based On Selection :19
Environmental Sciences
Green Nanotechnology
Biomedical applications
Bioindicators
Metrics
H-Index
i10 Index
Citation
3
1
104
* Rankings
Ranking Based On Selection :20
Environmental Engineering
Metrics
H-Index
i10 Index
Citation
3
1
32
* Rankings
Ranking Based On Selection :21
Microplankton
Diatoms
Marine Biology
Marine Biotechnology
Environmental Sciences
Metrics
H-Index
i10 Index
Citation
2
2
63
* Rankings
Ranking Based On Selection :22
Microbiology
biotechnology
environmental sciences
Metrics
H-Index
i10 Index
Citation
2
1
44
* Rankings
Ranking Based On Selection :23
Biochemistry
Environmental sciences
Metrics
H-Index
i10 Index
Citation
2
1
21
* Rankings
Ranking Based On Selection :24
Environmental Chemistry
Graphene
Environmental Science
Water Treatment
Metrics
H-Index
i10 Index
Citation
1
1
38
Mokhtar Ibrahim Yousef
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
48
94
10,589
Environmental Science
Reproductive Toxicology
Endocrine Disruption
Hepatotoxicity
Drug Toxicity
Alaa Mostafa
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
26
50
2,474
Environmental and Organic Geochemistry
Mohamed El Raey
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
25
39
2,423
climate change
remote sensing
space physics
AH Konsowa
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
20
25
1,531
Desalination
Water and wastewater Engineering
Hanafy Holail
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
19
31
2,167
Sedimentary Rocks and Environmental studies
Magda Abd El Salam
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
15
21
1,389
Environmental Sciences
Hussein Khamis
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
14
25
617
Environmental Physiology and Toxicology
Ehssan Nassef
Pharos University in Alexandria
İskenderiye, Egypt
Metrics
H-Index
i10 Index
Citation Counts
12
15
847
Enviromental Eng.
Water Pollution
petrochemical Eng
Petroleum Eng
Hamada B. Hawash
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
9
9
325
Materials Science
Polymer Chemistry
Nanomaterials Synthesis
Environmental Science
Fatma Sherif
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
9
8
238
environmental Science
Haytham Awad
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
8
7
207
Hydraulics
Water Resources Systems
Environmental Engineering
Artificial Intelligence
Civil Engineering
Rehab Elshanawany
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
7
6
747
Environmental Sciences / Marine Micropaleontology
Environmental Engineering
Water and wastewater treatment
Desalination
Membrane Technology
Osama Rady Abd El Kawy
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
6
6
812
Pedology
Remote sensing
GIS
Land evaluation
Land use analysis and climate change
Nourhan Ahmed
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
5
5
201
Nanotechnology
Environmental sciences
Ahmed Nael
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
5
2
123
chemistry and environmental science
Mamduh Elmesseiry
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
5
1
67
Abdelnasser Hosny Aly Alshorafa
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
4
2
41
Environmental Sciences
Biostatistics
Population Ecology
Soil Biology
Bassant Naiel
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
3
1
104
Environmental Sciences
Green Nanotechnology
Biomedical applications
Bioindicators
Doaa Mosselhy Bassuney
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
3
1
32
Environmental Engineering
Sherif El-Mallawany
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
2
2
63
Microplankton
Diatoms
Marine Biology
Marine Biotechnology
Environmental Sciences
Reem A. Elnahas
Pharos University in Alexandria
İskenderiye, Egypt
Metrics
H-Index
i10 Index
Citation Counts
2
1
44
Microbiology
biotechnology
environmental sciences
Yousra Talaat
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
2
1
21
Biochemistry
Environmental sciences
Amr Abdelkhalek
Alexandria University
Alexandria, Egypt
Metrics
H-Index
i10 Index
Citation Counts
1
1
38
Environmental Chemistry
Graphene
Environmental Science
Water Treatment