| Trends in phytoremediation of toxic elemental and organic pollutants CO Nwoko African journal of biotechnology 9 (37), 6010-6016, 2010 | 143 | 2010 |
| Performance of Phaseolus vulgaris L. in a soil contaminated with spent-engine oil CO Nwoko, PN Okeke, OO Agwu, IE Akpan African Journal of Biotechnology 6 (16), 2007 | 75 | 2007 |
| Heavy metal contamination of ready-to-use herbal remedies in south eastern Nigeria CO Nwoko, L Mgbeahuruike Pakistan Journal of Nutrition 10 (10), 959-964, 2011 | 61 | 2011 |
| Evaluation of environmental impact assessment system in Nigeria CO Nwoko Greener Journal of Environmental Management and Public Safety 2 (1), 022-031, 2013 | 43 | 2013 |
| Evaluation of Palm oil mill effluent to maize (Zea mays. L) crop: yields, tissue nutrient content and residual soil chemical properties CO Nwoko, S Ogunyemi Australian Journal of crop science 4 (1), 16-22, 2010 | 41 | 2010 |
| Effect of palm oil mill effluent (POME) on microbial characteristics in a humid tropical soil under laboratory conditions CO Nwoko, S Ogunyemi International Journal of Environmental Science and Development 1 (4), 307, 2010 | 36 | 2010 |
| Effect of arbuscular mycorrhizal (AM) fungi on the physiological performance of Phaseolus vulgaris grown under crude oil contaminated soil CO Nwoko J. Geosci. Environ. Prot 2, 9-14, 2014 | 30 | 2014 |
| Lead contamination of soil and vegetation in an abandoned battery factory site in Ibadan, Nigeria. CO Nwoko, JK Egunjobi | 30 | 2002 |
| Heavy metal determination and health risk assessment of oyster mushroom Pleurotus tuberregium (Fr.) Singer, collected from selected markets in Imo State. Nigeria UA Ihugba, CO Nwoko, FR Tony-Njoku, AA Ojiaku, L Izunobi Am J Environ Protect 6 (1), 22-27, 2018 | 20 | 2018 |
| Evaluation of phytotoxicity effect of palm oil mill effluent and cassava mill effluent on tomato (Lycopersicum esculentum) after pretreatment options CO Nwoko, S Ogunyemi, EE Nkwocha, IC Nnorom International Journal of Environmental Science and Development 1 (1), 67-72, 2010 | 16 | 2010 |
| Effect of pre-treatment of palm oil mill effluent (POME) and cassava mill effluent (CME) on the growth of tomato (Lycopersicum esculentum) OC Nwoko, S Ogunyemi, E Nkwocha Journal of Applied Sciences and Environmental Management 14 (1), 2010 | 15 | 2010 |
| Heavy metal concentration level in fluted pumpkin (Telfairia occidentalis) grown around Obio/Akpor, Rivers State, Nigeria: Its health implications RF Njoku-Tony, HS Udofia, CO Nwoko, CE Ihejirika, LU Mgbahuruike, ... Journal of Environmental Science and Public Health 4 (1), 16-31, 2020 | 8 | 2020 |
| Remediation of trace metal Contaminated Auto-mechanic soils with Mineral Supplementedorganic Amendments. C Nwoko, C Peter-Onoh, GO Onoh Universal Journal of Environmental Research & Technology 2 (6), 2012 | 8 | 2012 |
| Short CommunicationPreliminary Studies on Nutrients Removal Potential of Selected Aquatic Plants CO Nwoko, PN Okeke, N Ac-Chukwuocha Discovery and Innovation 16 (3), 133-136, 2004 | 8 | 2004 |
| Trace metal contamination of selected vegetables grown around Owerri Municipality, Nigeria CO Nwoko, EN Emenyonu, CE Umejuru Journal of Agriculture and Ecology Research International 1 (1), 18-29, 2014 | 7 | 2014 |
| Impact of abattoir waste on the water quality of Amilimocha River Asaba, Delta State RF Njoku-Tony, DH Ogbuagu, CE Ihejirika, CO Nwoko, GE Amaku, ... International Journal of Energy and Environmental Research 6 (1), 25-35, 2018 | 6 | 2018 |
| Influence of soil particle size and arbuscular mycorrhizal fungi (AMF) in the performance of Phaseolus vulgaris grown under crude oil contaminated soil. CO Nwoko, PN Okeke, PC Ogbonna Universal Journal of Environmental Research & Technology 3 (2), 2013 | 6 | 2013 |
| metal contents of Akanwu (trona): estimate of target hazard quotient (THQ) and dietary intake benefits and risk CO Nnorom IC, Ebo O, Nduka K,Igwe JC,Nwoko ABSU Journal of Environment, Science and Technology 2, 275-289, 2012 | 6* | 2012 |
| Assessment of trace metal contamination of catfish (Clarias gariepinus) and tilapia (Oreochromis niloticus) obtained from Choba and Aluu axis of New-Calabar River, Rivers State … CO Nwoko, I Egonwa Universal Journal of Environmental Research & Technology 5 (6), 2015 | 5 | 2015 |
| Plant nutrient recovery following Palm Oil Mill Effluent Soil amendment in a maize (Zea mays) grown screen house experiment CO Nwoko, C Peter-Onoh, S Ogunyemi Inter. J. Agric Rural Dev 15 (2), 1109-1118, 2012 | 5 | 2012 |
