| Comparative evaluation of the antibacterial activities of the essential oils of Rosmarinus officinalis L. obtained by hydrodistillation and solvent free microwave extraction … OO Okoh, AP Sadimenko, AJ Afolayan Food chemistry 120 (1), 308-312, 2010 | 503 | 2010 |
| Heavy metals in wastewater and sewage sludge from selected municipal treatment plants in Eastern Cape Province, South Africa MA Agoro, AO Adeniji, MA Adefisoye, OO Okoh Water 12 (10), 2746, 2020 | 224 | 2020 |
| Levels of polycyclic aromatic hydrocarbons in the water and sediment of Buffalo River Estuary, South Africa and their health risk assessment AO Adeniji, OO Okoh, AI Okoh Archives of environmental contamination and toxicology 76, 657-669, 2019 | 202 | 2019 |
| Pre-processing of sugarcane bagasse for gasification in a downdraft biomass gasifier system: A comprehensive review A Anukam, S Mamphweli, P Reddy, E Meyer, O Okoh Renewable and Sustainable Energy Reviews 66, 775-801, 2016 | 187 | 2016 |
| The effects of drying on the chemical components of essential oils of Calendula officinalis L. OO Okoh, AP Sadimenko, OT Asekun, AJ Afolayan African journal of biotechnology 7 (10), 2008 | 148 | 2008 |
| Synthetic methods for titanium dioxide nanoparticles: a review P Nyamukamba, O Okoh, H Mungondori, R Taziwa, S Zinya Titanium dioxide-material for a sustainable environment 8, 151-175, 2018 | 146 | 2018 |
| Occurrence of organochlorine pesticide residues in biological and environmental matrices in Africa: A two-decade review C Olisah, OO Okoh, AI Okoh Heliyon 6 (3), 2020 | 120 | 2020 |
| Analytical methods for the determination of the distribution of total petroleum hydrocarbons in the water and sediment of aquatic systems: A review AO Adeniji, OO Okoh, AI Okoh Journal of Chemistry 2017, 1-13, 2017 | 118 | 2017 |
| Bioflocculant Production by Virgibacillus sp. Rob Isolated from the Bottom Sediment of Algoa Bay in the Eastern Cape, South Africa S Cosa, LV Mabinya, AO Olaniran, OO Okoh, K Bernard, S Deyzel, ... Molecules 16 (3), 2431-2442, 2011 | 108 | 2011 |
| Distribution and chemical analysis of pharmaceuticals and personal care products (PPCPs) in the environmental systems: a review CR Ohoro, AO Adeniji, AI Okoh, OO Okoh International journal of environmental research and public health 16 (17), 3026, 2019 | 103 | 2019 |
| Studies on characterization of corn cob for application in a gasification process for energy production AI Anukam, BP Goso, OO Okoh, SN Mamphweli Journal of Chemistry 2017, 2017 | 102 | 2017 |
| Distribution pattern and health risk assessment of polycyclic aromatic hydrocarbons in the water and sediment of Algoa Bay, South Africa AO Adeniji, OO Okoh, AI Okoh Environmental geochemistry and health 41, 1303-1320, 2019 | 98 | 2019 |
| The effects of age on the yield and composition of the essential oils of Calendula officinalis. OO Okoh, AA Sadimenko, AJ Afolayan | 90 | 2007 |
| Analytical methods for polycyclic aromatic hydrocarbons and their global trend of distribution in water and sediment: a review AO Adeniji, OO Okoh, AI Okoh Recent insights in petroleum science and engineering 10, 2018 | 87 | 2018 |
| Petroleum hydrocarbon profiles of water and sediment of Algoa Bay, Eastern Cape, South Africa AO Adeniji, OO Okoh, AI Okoh International Journal of Environmental Research and Public Health 14 (10), 1263, 2017 | 87 | 2017 |
| Fate and impact of phthalates in activated sludge treated municipal wastewater on the water bodies in the Eastern Cape, South Africa T Salaudeen, O Okoh, F Agunbiade, A Okoh Chemosphere 203, 336-344, 2018 | 86 | 2018 |
| Analytical evaluation of carbamate and organophosphate pesticides in human and environmental matrices: a review NL Mdeni, AO Adeniji, AI Okoh, OO Okoh Molecules 27 (3), 618, 2022 | 75 | 2022 |
| Petroleum hydrocarbon fingerprints of water and sediment samples of Buffalo River Estuary in the Eastern Cape Province, South Africa AO Adeniji, OO Okoh, AI Okoh Journal of Analytical Methods in Chemistry 2017, 2017 | 67 | 2017 |
| Global evolution of organochlorine pesticides research in biological and environmental matrices from 1992 to 2018: A bibliometric approach C Olisah, OO Okoh, AI Okoh Emerging Contaminants 5, 157-167, 2019 | 65 | 2019 |
| Occurrences of organochlorine pesticides along the course of the Buffalo River in the Eastern Cape of South Africa and its health implications A Yahaya, OO Okoh, AI Okoh, AO Adeniji International Journal of Environmental Research and Public Health 14 (11), 1372, 2017 | 62 | 2017 |
