Citation Rankings
Highly Cited Researchers

Quaid-i-Azam University Islamabad Highly Cited Researchers CitationEngineering & Technology / Environmental Science & Engineering Rankings 2025

Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation IndexUniversities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025

* Total Citation Counts Rankings
Ranking Based On Selection :1
Pakistan
Riffat Naseem Malik
Environmental Health
Contaminants and Exposure
ecotoxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,409
11,050
0.635
* Total Citation Counts Rankings
Ranking Based On Selection :2
Pakistan
Abida Farooqi
water quality
arsenic and fluoride in groundwater
geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,608
2,794
0.774
* Total Citation Counts Rankings
Ranking Based On Selection :3
Pakistan
Mazhar Iqbal
Environmental Biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,585
1,490
0.940
* Total Citation Counts Rankings
Ranking Based On Selection :4
Pakistan
Muhammad Usman Khan
Rehabilitation
Physical Therapy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,405
1,170
0.833
* Total Citation Counts Rankings
Ranking Based On Selection :5
Pakistan
Zobia Khatoon
Environmental Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
684
684
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :6
Pakistan
Raqeeb Ullah Kakar
Environmental sciences
Genetics and Molecular Biology
Applied and Environmental Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
245
0.860
* Total Citation Counts Rankings
Ranking Based On Selection :7
Pakistan
Rahat Riaz
Persistent organic pollutants in environment
Climate Change
Environmental Chemistry
Environmental
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
147
137
0.932
* Total Citation Counts Rankings
Ranking Based On Selection :8
Pakistan
Uzma Saeed
Environmental Sciences
Conservation
Ecology
Climate Change
Species Distribution Modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26
21
0.808
* Total Citation Counts Rankings
Ranking Based On Selection :9
Pakistan
Atif Nauman
Environmental Sciences
Climate Change
Heavy Metals
Waste water Treatment
Sustainable Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15
10
0.667
* Total Citation Counts Rankings
Rankings
47,511
Pakistan
59
4
Ranking Based On Selection: 1
Riffat Naseem Malik
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,409
11,050
0.635
Environmental Health
Contaminants and Exposure
ecotoxicology
* Total Citation Counts Rankings
Rankings
269,288
Pakistan
701
44
Ranking Based On Selection: 2
Abida Farooqi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,608
2,794
0.774
water quality
arsenic and fluoride in groundwater
geochemistry
* Total Citation Counts Rankings
Rankings
505,614
Pakistan
1,892
101
Ranking Based On Selection: 3
Mazhar Iqbal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,585
1,490
0.940
* Total Citation Counts Rankings
Rankings
546,273
Pakistan
2,132
113
Ranking Based On Selection: 4
Muhammad Usman Khan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,405
1,170
0.833
* Total Citation Counts Rankings
Rankings
800,227
Pakistan
3,911
151
Ranking Based On Selection: 5
Zobia Khatoon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
684
684
1.000
* Total Citation Counts Rankings
Rankings
1,125,102
Pakistan
6,757
234
Ranking Based On Selection: 6
Raqeeb Ullah Kakar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
245
0.860
Environmental sciences
Genetics and Molecular Biology
Applied and Environmental Microbiology
* Total Citation Counts Rankings
Rankings
1,401,158
Pakistan
10,185
347
Ranking Based On Selection: 7
Rahat Riaz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
147
137
0.932
Persistent organic pollutants in environment
Climate Change
Environmental Chemistry
Environmental
* Total Citation Counts Rankings
Rankings
1,994,580
Pakistan
18,261
579
Ranking Based On Selection: 8
Uzma Saeed
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26
21
0.808
Environmental Sciences
Conservation
Ecology
Climate Change
Species Distribution Modelling
* Total Citation Counts Rankings
Rankings
2,119,264
Pakistan
20,252
637
Ranking Based On Selection: 9
Atif Nauman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15
10
0.667
Environmental Sciences
Climate Change
Heavy Metals
Waste water Treatment
Sustainable Development