Citation Rankings
Highly Cited Researchers
Engineering & Technology / Environmental Science & Engineering Highly Cited Researchers 13 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
ozonation
Electrocoagulation
ceramic membranes
Advanced oxidation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,933
2,476
0.844
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Wastewater Treatment
Water Treatment
Solid Waste Management
Water Supply
Sewerage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,625
828
0.510
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Wastewater Treatment
Biofuels
Quality
Engineering Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
880
656
0.745
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Environmental Chemistry
Analytical Chemistry
Nano-Chemistry & Materials
Adsorption
Solid-Phase Extraction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
729
552
0.757
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
687
134
0.195
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Water and Wastewater Treatment
Adsorption
Advanced Oxidation Processes
Pharmaceutical and
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
185
161
0.870
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Chemical and Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
171
131
0.766
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Geotechnical Engineering
Geoenvironmental Engineering
Environmental Geotechnics
Engineering Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
131
117
0.893
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Hydrology
Groundwater Hydrology
Surface water
Water Resources Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45
45
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Water and Wastewater Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
27
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Environmental Engineering
Chemical Engineering
Microbiology
Sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24
19
0.792
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Environmental Sciences
Health & safety
Waste Water Treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Environmental Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total Citation Counts Rankings
Rankings
335,656
1,011
13
Ranking Based On Selection: 1
Amir Ikhlaq
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,933
2,476
0.844
ozonation
Electrocoagulation
ceramic membranes
Advanced oxidation
* Total Citation Counts Rankings
Rankings
518,075
2,022
34
Ranking Based On Selection: 2
Sajjad Haider Sheikh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,625
828
0.510
Wastewater Treatment
Water Treatment
Solid Waste Management
Water Supply
Sewerage
* Total Citation Counts Rankings
Rankings
734,924
3,521
71
Ranking Based On Selection: 3
Mohsin Kazmi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
880
656
0.745
Wastewater Treatment
Biofuels
Quality
Engineering Education
* Total Citation Counts Rankings
Rankings
800,842
4,017
81
Ranking Based On Selection: 4
Muhammad Umar Farooq
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
729
552
0.757
Environmental Chemistry
Analytical Chemistry
Nano-Chemistry & Materials
Adsorption
Solid-Phase Extraction
* Total Citation Counts Rankings
Rankings
821,551
4,184
85
Ranking Based On Selection: 5
Waris Ali
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
687
134
0.195
Environmental Engineering
* Total Citation Counts Rankings
Rankings
1,348,983
9,701
196
Ranking Based On Selection: 6
Mehwish Anis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
185
161
0.870
Water and Wastewater Treatment
Adsorption
Advanced Oxidation Processes
Pharmaceutical and
* Total Citation Counts Rankings
Rankings
1,383,474
10,129
205
Ranking Based On Selection: 7
Atif Khan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
171
131
0.766
Chemical and Environmental Engineering
* Total Citation Counts Rankings
Rankings
1,497,555
11,579
230
Ranking Based On Selection: 8
Hafiz Muhammad Awais Rashid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
131
117
0.893
Geotechnical Engineering
Geoenvironmental Engineering
Environmental Geotechnics
Engineering Geology
* Total Citation Counts Rankings
Rankings
1,881,461
16,711
339
Ranking Based On Selection: 9
Ahmad Mujtaba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45
45
1.000
Hydrology
Groundwater Hydrology
Surface water
Water Resources Engineering
* Total Citation Counts Rankings
Rankings
2,019,746
18,772
374
Ranking Based On Selection: 10
Tanveer Ahmed
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
27
1.000
Water and Wastewater Engineering
* Total Citation Counts Rankings
Rankings
2,052,028
19,289
384
Ranking Based On Selection: 11
Zukhruf Asim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24
19
0.792
Environmental Engineering
Chemical Engineering
Microbiology
Sustainability
* Total Citation Counts Rankings
Rankings
2,346,691
24,742
480
Ranking Based On Selection: 12
Ayesha Mobeen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Environmental Sciences
Health & safety
Waste Water Treatment
* Total Citation Counts Rankings
Rankings
2,346,691
24,742
480
Ranking Based On Selection: 13
Mahnoor Asif
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Environmental Science