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
Environmental and Industrial Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
614
386
0.629
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Atmospheric Physics
Climate Change
Renewable Energy
Air Quality
Remote Sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
963
310
0.322
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Human Nutrition
Obesity in children and adult
Climate change on food supply.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74
67
0.905
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
environmental related
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18
11
0.611
Michael Nwachukwu
Imo State University Owerri
Owerri, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
614
386
0.629
Environmental and Industrial Microbiology
Chidiezie Chineke
Imo State University Owerri
Owerri, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
963
310
0.322
Atmospheric Physics
Climate Change
Renewable Energy
Air Quality
Remote Sensing
Nkeiruka Oly Alawuba
Imo State University Owerri
Owerri, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74
67
0.905
Human Nutrition
Obesity in children and adult
Climate change on food supply.
Ogbuji S. I
Imo State University Owerri
Owerri, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18
11
0.611
environmental related