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
* Total Citation Counts Rankings
Ranking Based On Selection :1
Synthetic Biology
Biochemical and Biological Engineering
Biomaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,712
6,027
0.306
* Total Citation Counts Rankings
Ranking Based On Selection :2
Water treatment
Water Quality Control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,866
1,774
0.459
* Total Citation Counts Rankings
Ranking Based On Selection :3
Environment
nutrient cycling
geology
hydrogeology
geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,388
2,309
0.967
* Total Citation Counts Rankings
Ranking Based On Selection :4
Massmedia
Communication
Climate Change Communication
Transnationalisation of Publich Spheres
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,451
801
0.552
* Total Citation Counts Rankings
Ranking Based On Selection :5
livelihoods
climate change
disaster
development
population movements
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,137
859
0.755
* Total Citation Counts Rankings
Ranking Based On Selection :6
Adsorption
Membrane Filtration
Water Quality Monitoring
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
633
625
0.987
* Total Citation Counts Rankings
Ranking Based On Selection :7
MSW Management
Life Cycle Assessment
Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
454
433
0.954
* Total Citation Counts Rankings
Ranking Based On Selection :8
Biomass combustion
Air pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
153
114
0.745
* Total Citation Counts Rankings
Ranking Based On Selection :9
Environment
Food
Energy Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
An Ping Zeng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,712
6,027
0.306
Synthetic Biology
Biochemical and Biological Engineering
Biomaterials
Mathias Ernst
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,866
1,774
0.459
Water treatment
Water Quality Control
Wagner de Oliveira Garcia
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,388
2,309
0.967
Environment
nutrient cycling
geology
hydrogeology
geochemistry
Ana Ivanova
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,451
801
0.552
Massmedia
Communication
Climate Change Communication
Transnationalisation of Publich Spheres
Md Nadiruzzaman
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,137
859
0.755
livelihoods
climate change
disaster
development
population movements
Muhammad Usman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
633
625
0.987
Adsorption
Membrane Filtration
Water Quality Monitoring
Environmental Engineering
Ihsanullah Sohoo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
454
433
0.954
MSW Management
Life Cycle Assessment
Climate Change
Natasa Dragutinovic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
153
114
0.745
Biomass combustion
Air pollution
Aliu Olamide Oyedun
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Environment
Food
Energy Policy