| Exergetic sustainability and economic analysis of hybrid solar-biomass dryer integrated with copper tubing as heat exchanger MC Ndukwu, M Simo-Tagne, FI Abam, OS Onwuka, S Prince, ... Heliyon 6 (2), 2020 | 112 | 2020 |
| Multi-criteria approach to water quality and health risk assessments in a rural agricultural province, southeast Nigeria CK Ezugwu, OS Onwuka, JC Egbueri, CO Unigwe, DA Ayejoto HydroResearch 2, 40-48, 2019 | 77 | 2019 |
| Estimation of aquifer hydraulic characteristics of low permeability formation from geosounding data: a case study of Oduma town, Enugu state AC Ekwe, IN Nnodu, KI Ugwumbah, OS Onwuka Online Journal of Earth Sciences 4 (1), 19-26, 2010 | 51 | 2010 |
| Potability of shallow groundwater in Enugu town, southeastern Nigeria OS Onwuka, KO Uma, HI Ezeigbo Global Journal of Environmental Sciences 3 (1), 33-39, 2004 | 50 | 2004 |
| Multidimensional analysis of the contamination status, corrosivity and hydrogeochemistry of groundwater from parts of the Anambra Basin, Nigeria JC Egbueri, CK Ezugwu, CO Unigwe, OS Onwuka, OC Onyemesili, ... Analytical Letters 54 (13), 2126-2156, 2021 | 45 | 2021 |
| Assessment of groundwater quality of Lokoja basement area, North-Central Nigeria R Ayuba, OV Omonona, OS Onwuka Journal of the Geological Society of India 82, 413-420, 2013 | 42 | 2013 |
| Assessment of the impact of onsite sanitary sewage system and agricultural wastes on groundwater quality in Ikem and its environs, south-eastern Nigeria OS Onwuka, CK Ezugwu, SI Ifediegwu Geology, Ecology, and Landscapes 3 (1), 65-81, 2019 | 29 | 2019 |
| Characterization of groundwater quality in three settlement areas of Enugu metropolis, southeastern Nigeria, using multivariate analysis OV Omonona, OS Onwuka, CO Okogbue Environmental monitoring and assessment 186, 651-664, 2014 | 29 | 2014 |
| Hydrochemical characteristics and quality assessment of regolith aquifers in Enugu metropolis, southeastern Nigeria OS Onwuka, OV Omonona, O C Anika Environmental Earth Sciences 70, 1135-1141, 2013 | 25 | 2013 |
| Determining the occurrence of potential groundwater zones using integrated hydro-geomorphic parameters, GIS and remote sensing in Enugu State, Southeastern, Nigeria O Igwe, SI Ifediegwu, OS Onwuka Sustainable Water Resources Management 6, 1-14, 2020 | 22 | 2020 |
| Groundwater exploration in Ikorodu, Lagos-Nigeria: A surface geophysical survey contribution DN Obiora, OS Onwuka Pacific J. Sci. Technol 6 (1), 86-93, 2005 | 20 | 2005 |
| Evaluating the environmental risk and suitability of hand-dug wells for drinking purposes: a rural case study from Nigeria JC Egbueri, PD Ameh, CK Ezugwu, OS Onwuka International Journal of Environmental Analytical Chemistry 102 (17), 5528-5548, 2022 | 19 | 2022 |
| Multivariate statistical assessment and spatial distribution of groundwater contamination in Neke and its environs, South-Eastern Nigeria OS Obialo, EC Kenneth International Journal of Physical Science 14 (8), 62-80, 2019 | 18 | 2019 |
| Multi-criteria approach to water quality and health risk assessments in a rural agricultural province, southeast Nigeria. HydroResearch 2: 40–48 CK Ezugwu, OS Onwuka, JC Egbueri, CO Unigwe, DA Ayejoto | 18 | 2019 |
| Efficacy of GIS-based AHP and data-driven intelligent machine learning algorithms for irrigation water quality prediction in an agricultural-mine district within the Lower … ME Omeka, O Igwe, OS Onwuka, OM Nwodo, SI Ugar, PA Undiandeye, ... Environmental Science and Pollution Research, 1-30, 2023 | 17 | 2023 |
| Geochemical distribution, statistical and health risk assessment of toxic elements in groundwater from a typical mining district in Nigeria MT Enyigwe, OS Onwuka, JC Egbueri Environmental Forensics 23 (5-6), 469-481, 2022 | 17 | 2022 |
| Groundwater Quality in Lekwesi Umuchieze Area, South-eastern Nigeria. The Pacific J AE Ofoma, OS Onwuka, OC Egbu Sci. Technol 6, 170-176, 2005 | 16 | 2005 |
| Radiotoxicity risks of radium-226 (226Ra) on groundwater-based drinking at Dawaki, Kuje, Giri and Sabon-Lugbe area of Abuja, North Central Nigeria O Maxwell, H Wagiran, E Zaidi, ES Joel, IT Tenebe, IA Oha, OS Onwuka Environmental Earth Sciences 75, 1-9, 2016 | 15 | 2016 |
| Roles of hydro-geotechnical and slope stability characteristics in the erosion of Ajali and Nanka geologic formations in southeastern Nigeria CO Unigwe, O Igwe, OS Onwuka, JC Egbueri, ME Omeka Arabian Journal of Geosciences 15 (18), 1492, 2022 | 14 | 2022 |
| Hydrogeochemical characteristics of coastal aquifers from Port Harcourt, southern Nigeria OS Onwuka, OV Omonona Environmental Earth Sciences 76, 1-16, 2017 | 14 | 2017 |
