| Sampling, sample treatment and quality assurance issues for the determination of phosphorus species in natural waters and soils PJ Worsfold, LJ Gimbert, U Mankasingh, O Ndukaku Omaka, G Hanrahan, ... Talanta 66, 273-293, 2005 | 221 | 2005 |
| Hydrogeochemical attributes and ground water quality of Ngbo Community in Ohaukwu Area Council, Ebonyi State, Nigeria ON Omaka, I. F. Offor, IM Onwe Revista Ambiente & Água 10 (1), 35 - 47, 2015 | 28 | 2015 |
| Assessment of the quality of groundwater from different parts of southeastern Nigeria for potable use ON Omaka, OP Aghamelu, CA Ike-Amadi, RC Ofoezie Environmental Earth Sciences 76, 1-24, 2017 | 24 | 2017 |
| Seasonal Studies of physicochemical parameters and nutrients variations of rivers and streams in Abakaliki, Ebonyi State Nigeria O O. N., J Itumoh, E., FI and Nwabue Global Nest Journal 16 (1), 114 – 123, 2014 | 23* | 2014 |
| Assessment of heavy metals around Abakaliki metropolis and potential bioaccumulation and biochemical effects on the liver, kidney, and erythrocyte of rats AP Ebokaiwe, ON Omaka, U Okorie, O Oje, C Egedeigwe, A Ekwe, ... Human and Ecological Risk Assessment: An International Journal 24 (5), 1233-1255, 2018 | 17 | 2018 |
| Hydrothermal Synthesis of Multifunctional Biochar-supported SALEN Nanocomposite for Adsorption of Cd(II) Ions: Function, Mechanism, Equilibrium and Kinetic Studies FS Nworie, FI Nwabue, W Oti, ON Omaka, H Igwe Analytical and Bioanalytical Chemistry Research 8 (1), 91 - 112, 2020 | 13 | 2020 |
| Characterization of 2,5-dimethyl-2,4-dihydroxy-3(2H) furanone, A Flavourant Principle from Sysepalum dulcificum O O.N., CJ Chukwu, PM Aja Nat Prod Chem Res 5, 9, 2017 | 11* | 2017 |
| Phosphorus in the Environment, Effects of Eutrophication, Cycle, Fractionation, Determination and Procedures for Sampling and Storage–A Review ON Omaka Journal of Applied and Natural Sciences 1 (1), 27-36, 2007 | 10 | 2007 |
| Fe, Pb, Mn, and Cd Concentrations in Edible Mushrooms (Agaricus campestris) Grown in Abakaliki, Ebonyi State, Nigeria NO Omaka, IF Offor, RC Ehiri International Journal of Agricultural and Biosystems Engineering 8 (1), 84-88, 2014 | 9 | 2014 |
| The impacts of oil spill and soil factors on trace metals in sediments (soils) of Abakaliki and Afikpo, Nigeria NO Omaka, JO Igidi, FN Iyke, EJ Itumoh Journal of Emerging Trends in Engineering and Applied Sciences 2 (4), 648-657, 2011 | 9 | 2011 |
| Trace metals analysis of soil and water samples from a limestone mining Site in Sokoto state Nigeria EJ Itumoh, T Izuagie, NO Omaka, A Uba, M Shuaibu, IA Dogonyaro, ... Journal of Physical Sciences and Innovation 3, 62-71, 2011 | 9 | 2011 |
| A physicochemical study of extracts from Napolena Vogelii grown in Ebonyi State as a source of new acid – Base Indicators ON Omaka, OJ Igidi, FI and Nwabue Research Journal in Engineering and Applied Sciences 1 (2), 96-101, 2012 | 8 | 2012 |
| Enzymatic flow-injection determination of phytase-hydrolysable phosphorus (PHP) in natural waters using immobilized 3-phytase ON Omaka, M Keith-Roach, ID McKelvie, PJ Worsfold International Journal of Environmental and Analytical Chemistry 88 (2), 91-101, 2008 | 8 | 2008 |
| Risk assessment of the anthropogenic activities (quarrying) and heavy metal profile in mining environment IG Nwovu, I Oluka, ON Omaka, OA Oje Environmental Monitoring and Assessment 193, 1-15, 2021 | 7 | 2021 |
| Gas emissions and metallic contents of commonly used fuelwood in Nigeria ON Omaka, FI Nwabue, EJ Itumoh, GN Okeke Environment and Pollution 2 (3), 100, 2013 | 7 | 2013 |
| Trace metal toxicity in our environment: Case studies of influx of metals in soils, crops, waters and air in Ebonyi State EJ Itumoh, AJ Uraku, ON Omaka, FI Nwabue Global Journal of Bioscience and Technology 2, 33-36, 2013 | 7 | 2013 |
| Food grinding stones as a source of heavy metal contamination of diets RC Ehiri, UG Megwa, ON Omaka Journal of Sciences and Multidisciplinary Research 2, 2010 | 6 | 2010 |
| Nickel(II) and copper(II) complexes of 2,2’‐bibenzo[d]thiazole: Synthesis, characterisation and biological studies ON Omaka, AC Ekennia, NN Njoku, DC Onwudiwe Applied Organometallic Chemistry 32 (4), e4241, 2018 | 5 | 2018 |
| Evaluation of groundwater quality of selected boreholes in Ohaozara and ivo council areas of Ebonyi state, Nigeria ON Omaka, IF Offor, DO Igwe, E Ugochukwu Pakistan Journal of Scientific & Industrial Research Series A: Physical …, 2016 | 5 | 2016 |
| Atmospheric and metallic pollutants and their impacts on the environment: case study of Abakaliki Metropolis ON Omaka Journal of Applied and Natural Sciences (JANS) 4 (1), 24-29, 2010 | 5 | 2010 |
