| Geostatistical assessment of groundwater quality from coastal aquifers of Eastern Niger Delta, Nigeria AN Amadi, PI Olasehinde, J Yisa, EA Okosun, HO Nwankwoala, YB Alkali Geosciences, 2012 | 116 | 2012 |
| Evaluation of heavy metal in soils from Enyimba dumpsite in Aba, southeastern Nigeria using contamination factor and geo-accumulation index AN Amadi, HO Nwankwoala Canadian Center of Science and Education, 2013 | 94 | 2013 |
| Hydrochemical facies and ionic ratios of groundwater in Port Harcourt, Southern Nigeria HO Nwankwoala, GJ Udom Res J Chem Sci 1 (3), 87-101, 2011 | 85 | 2011 |
| Localizing the strategy for achieving rural water supply and sanitation in Nigeria HO Nwankwoala African Journal of Environmental Science and Technology 5 (13), 1170-1176, 2011 | 70 | 2011 |
| Case studies on coastal wetlands and water resources in Nigeria HO Nwankwoala European Journal of Sustainable Development 1 (2), 113-113, 2012 | 65 | 2012 |
| Investigation of aquifer quality in Bonny Island, Eastern Niger Delta, Nigeria using geophysical and geochemical techniques AN Amadi, HO Nwankwoala, PI Olasehinde, NO Okoye, IA Okunlola, ... Journal of Emerging Trends in Engineering and Applied Sciences 3 (1), 183-187, 2012 | 58 | 2012 |
| Groundwater resources of the Niger Delta: Quality implications and management considerations HO Nwankwoala, SA Ngah International Journal of water resources and environmental engineering 6 (5 …, 2014 | 56 | 2014 |
| Gully Erosion and landslides in southeastern Nigeria: causes, consequences and control measures BCE Egboka, AE Orji, HO Nwankwoala Glob J Eng Sci 2 (4), 1-11, 2019 | 50 | 2019 |
| Suitability of soils as bearing media at a freshwater swamp terrain in the Niger Delta PO Youdeowei, HO Nwankwoala Journal of geology and mining research 5 (3), 58-64, 2013 | 45 | 2013 |
| Iron (Fe2+) occurrence and distribution in groundwater sources in different geomorphologic zones of Eastern Niger Delta SA Ngah, HO Nwankwoala Archives of Applied Science Research 5 (2), 266-272, 2013 | 43 | 2013 |
| Evaluation of sub-soil geotechnical properties for shallow foundation design in onne, Rivers state, Nigeria SA Ngah, HO Nwankwoala The International Journal of Engineering and Science (IJES) 2 (11), 08-16, 2013 | 42 | 2013 |
| Some heavy metal investigations in groundwater sources in Yenagoa, Bayelsa State, Nigeria. HO Nwankwoala, GJ Udom, SA Ugwu | 42 | 2011 |
| An integrated approach to sustainable groundwater development and management in Nigeria HO Nwankwoala Journal of geology and mining research 3 (5), 123-130, 2011 | 42 | 2011 |
| Geotechnical Investigation of Sub-Soiland Rock Characteristics in Parts of Shiroro-Muya-Chanchaga Area of Niger State, Nigeria HO Nwankwoala, AN Amadi Cafet Innova Technical Society, 2013 | 37 | 2013 |
| Hydrogeology of eastern Niger delta: a review TKS Abam, HO Nwankwoala Journal of Water Resource and Protection 12 (9), 741-777, 2020 | 35 | 2020 |
| Hydrochemical factors and correlation analysis in groundwater quality in Yenagoa, Bayelsa State, Nigeria HO Nwankwoala, AN Amadi, E Oborie, FA Ushie Science and Education Publishing, 2014 | 35 | 2014 |
| Contamination indices and heavy metal concentrations in soils in Okpoko and Environs, Southeastern Nigeria HO Nwankwoala, AJ Ememu Journal of Environmental Science and public health 2 (2), 77-95, 2018 | 34 | 2018 |
| Characteristics and quality assessment of groundwater in parts of Akure, South-Western Nigeria HO Nwankwoala, CN Nwagbogwu Journal of Environmental Science and Water Resources 1 (4), 67-73, 2012 | 34 | 2012 |
| Compendious evaluation of groundwater in parts of Asaba, Nigeria for agricultural sustainability OC Akakuru, BE Akudinobi, HO Nwankwoala, OU Akakuru, SO Onyekuru Geosciences Journal 25 (6), 915-927, 2021 | 33 | 2021 |
| Determination of subsurface geotechnical properties for foundation design and construction in Akenfa Community, Bayelsa State, Nigeria HO Nwankwoala, AN Amadi, FA Ushie, T Warmate T, CJ Eze American Journal of Civil Engineering and Architecture, 201 4, Vol. 2, No. 4 …, 2014 | 33 | 2014 |