Citation Rankings
Highly Cited Researchers
Engineering & Technology / Environmental Science & Engineering Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Environmental Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,265
12,337
0.675
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Antimicrobial Agents
Nanoformulation
Silver nanoparticles
Phosphate solubilization
Biofilm
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,335
8,960
0.726
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Electrochemistry
Physical Chemistry
Nanotechnology
Renewable Energy
Environmental Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,250
8,836
0.785
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Climate
Climate Change
Impact of Climate Change in water resources and environment
climate extremes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,821
7,171
0.813
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Environmental Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,344
5,788
0.694
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Agricultural Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,406
4,974
0.920
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Air Pollution. Ecophysiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,001
4,293
0.613
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Climate Change
Climate Modelling
Radar and Satellite Meteorology
Monsoon Meteorology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,712
3,826
0.670
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Environmental Sciences- Metalo-Phthalocyanine -nano-materiaux - essential oils
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,598
2,765
0.768
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Water
industrial wastewater
Pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,245
2,435
0.750
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Groundwater
hydrogeochemistry
modelling
groundwater contamination
Quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,276
1,988
0.607
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Environmental Microbiology and Biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,419
1,763
0.729
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Bioremediation. Degradation of Organics. Photocatalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,394
969
0.695
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
water and wastewater treatment
adsorption
biosorption photocatalysis
carbon materials
Nanocomposite
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
980
660
0.673
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Molecular Biology and Stress of Plant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,024
637
0.622
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
analysis Environmental sciences
Pesticide
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
711
514
0.723
* Last 6 Years Citation Counts Rankings
Rankings
26,568
114
14
Ranking Based On Selection: 1
Ma Barakat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,265
12,337
0.675
Environmental Sciences
* Last 6 Years Citation Counts Rankings
Rankings
42,779
184
23
Ranking Based On Selection: 2
Oves M
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,335
8,960
0.726
Antimicrobial Agents
Nanoformulation
Silver nanoparticles
Phosphate solubilization
Biofilm
* Last 6 Years Citation Counts Rankings
Rankings
43,603
189
25
Ranking Based On Selection: 3
Iqbal Ismail
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,250
8,836
0.785
Electrochemistry
Physical Chemistry
Nanotechnology
Renewable Energy
Environmental Science
* Last 6 Years Citation Counts Rankings
Rankings
58,600
260
39
Ranking Based On Selection: 4
Mansour Almazroui
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,821
7,171
0.813
Climate
Climate Change
Impact of Climate Change in water resources and environment
climate extremes
* Last 6 Years Citation Counts Rankings
Rankings
78,092
357
48
Ranking Based On Selection: 5
Rajeev Kumar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,344
5,788
0.694
Environmental Science
* Last 6 Years Citation Counts Rankings
Rankings
94,774
444
55
Ranking Based On Selection: 6
Muhammad Imtiaz Rashid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,406
4,974
0.920
Agricultural Sciences
* Last 6 Years Citation Counts Rankings
Rankings
113,720
552
66
Ranking Based On Selection: 7
Ibrahim Hassan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,001
4,293
0.613
Air Pollution. Ecophysiology
* Last 6 Years Citation Counts Rankings
Rankings
130,380
647
78
Ranking Based On Selection: 8
M Nazrul Islam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,712
3,826
0.670
Climate Change
Climate Modelling
Radar and Satellite Meteorology
Monsoon Meteorology
* Last 6 Years Citation Counts Rankings
Rankings
188,664
976
117
Ranking Based On Selection: 9
Bassem Jamoussi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,598
2,765
0.768
Environmental Sciences- Metalo-Phthalocyanine -nano-materiaux - essential oils
* Last 6 Years Citation Counts Rankings
Rankings
216,034
1,132
129
Ranking Based On Selection: 10
Talal Almeelbi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,245
2,435
0.750
Water
industrial wastewater
Pollution
* Last 6 Years Citation Counts Rankings
Rankings
265,215
1,413
149
Ranking Based On Selection: 11
Natarajan Rajmohan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,276
1,988
0.607
Groundwater
hydrogeochemistry
modelling
groundwater contamination
Quality
* Last 6 Years Citation Counts Rankings
Rankings
297,630
1,595
162
Ranking Based On Selection: 12
Arulazan Pugazhendi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,419
1,763
0.729
Environmental Microbiology and Biotechnology
* Last 6 Years Citation Counts Rankings
Rankings
488,691
2,874
266
Ranking Based On Selection: 13
Sivaraman Chandrasekaran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,394
969
0.695
Bioremediation. Degradation of Organics. Photocatalysis
* Last 6 Years Citation Counts Rankings
Rankings
627,166
3,768
331
Ranking Based On Selection: 14
Hany H Abdel Ghafar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
980
660
0.673
water and wastewater treatment
adsorption
biosorption photocatalysis
carbon materials
Nanocomposite
* Last 6 Years Citation Counts Rankings
Rankings
640,065
3,851
337
Ranking Based On Selection: 15
Sameera Omar Bafeel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,024
637
0.622
Molecular Biology and Stress of Plant
* Last 6 Years Citation Counts Rankings
Rankings
719,964
4,416
380
Ranking Based On Selection: 16
Mohamed H Shiboob
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
711
514
0.723
analysis Environmental sciences
Pesticide