Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
Biological water and wastewater Treatment
Bio-energy recovery
Application of nanoparticles
Environmental conservation and sustainability
Climate change and adaptation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
* Total i10 IndexRankings
Ranking Based On Selection :2
Analytical chemistry
Environmental science/chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
John Justo Ambuchi
Rongo University
Rongo, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
Biological water and wastewater Treatment
Bio-energy recovery
Application of nanoparticles
Environmental conservation and sustainability
Climate change and adaptation
Francis Ongachi Olal
Rongo University
Rongo, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Analytical chemistry
Environmental science/chemistry