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 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
Water Treatment Process Modelling
Optimization and Control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
868
454
0.523
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Environmental Sustainability. Ecotoxicological effect and fate of contaminants in environment for quantitative risk assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
140
126
0.900
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Environment
Environmental management
Environmental planning
Environmental Impact Assessment
Environmental Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
142
122
0.859
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Environmental Sciences
ecotoxicology
plant soil interaction
biodiversity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
123
99
0.805
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Carbon sequestration in terrestrial systems
mitigation and adaptation in climate change
payment for ecosystem services
enviro
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85
79
0.929
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Environmental Management
Water Resources Management
Environmental Planning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99
53
0.535
Saidat Olanipekun Giwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
868
454
0.523
Water Treatment Process Modelling
Optimization and Control
Abubakar Umar Yuguda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
140
126
0.900
Environmental Sustainability. Ecotoxicological effect and fate of contaminants in environment for quantitative risk assessment
Abdulkadir Aliyu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
142
122
0.859
Environment
Environmental management
Environmental planning
Environmental Impact Assessment
Environmental Health
Abdulhameed Ahmad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
123
99
0.805
Environmental Sciences
ecotoxicology
plant soil interaction
biodiversity
Abdullahi, Ahmed Chinade
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85
79
0.929
Carbon sequestration in terrestrial systems
mitigation and adaptation in climate change
payment for ecosystem services
enviro
Ifeanyi Ezemokwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99
53
0.535
Environmental Management
Water Resources Management
Environmental Planning