Omuluche Collins O., Ogbaji Henderson O., Usiabulu Godsday I., Cookey Cookey I., Oji Chihurumnanya O., Okpoji Awajiiroijana U., Isaac Ukeme O., Edodi Iyam O. & Garuba Muhammed H.·Journal of Energy Research and Reviews·2026
Background: Biodiesel production from waste and locally available plant oils may support renewable fuel development while valorising lipid resources. Aim: This study comparatively evaluated biodiesel yield, fuel properties and oxidative stability of biodiesel produced from waste...
Open access
Research Article10.9734/jenrr/2026/v18i9534
Onuchukwu Ejikeme E., Omuluche Collins O., Usiabulu Godsday I., Okpoji Awajiiroijana U., Cookey Cookey I., Akpan Nsima A., Fabis Manasseh & Anumaka Collins C.·Asian Journal of Chemical Sciences·2026
Background: Produced water is the largest waste stream generated during petroleum exploration and production and may contain chemical constituents that can cause adverse environmental impacts if inadequately managed. Aim: This study comparatively characterised the chemical compos...
Open access
Research Article10.9734/ajocs/2026/v16i5469
Angela Atata, Ohaturuonye Sampson O., Omuluche Collins O., Nwanekwu Akunna Maureen, Usiabulu Godsday I., Okpoji Awajiiroijana U., Osuagwu Eze Lloyd & Joseph Jerry·South Asian Journal of Parasitology·2026
This study assessed the parasitological profiles of fish from petroleum-impacted freshwater ecosystems in Delta State, Nigeria, and examined spatial associations between petroleum contamination and parasite burden. A total of 300 fish representing six freshwater species were coll...
Open access
Research Article10.9734/sajp/2026/v9i4312
Groundwater quality deterioration and seawater intrusion have become major environmental concerns in the coastal aquifers of the Niger Delta due to increasing urbanisation, industrial activities, and intensive groundwater abstraction. This study evaluated the hydrochemical evolut...
Open access
Research Article10.9734/ajgr/2026/v9i3438
Groundwater is an important source of water supply in the Niger Delta, and its chemistry reflects interactions between recharge water and aquifer materials. This study characterised the hydrogeochemistry of selected Niger Delta aquifer systems and assessed mineral–water interacti...
Open access
Research Article10.9734/ajgr/2026/v9i4473
Ekpedeme Asuaiko R., Abia Uwem B., Yunusa Abdulrahman, Omuluche Collins O., Isaac Ukeme O., Okoye Peter I., Okpoji, Awajiiroijana U & Cookey Cookey I.·Journal of Energy Research and Reviews·2026
Crude-oil molecular biomarkers provide reliable geochemical indicators for evaluating petroleum origin, thermal maturity, depositional environment and reservoir correlation. This study investigated the physicochemical characteristics and molecular biomarker composition of crude o...
Open access
Research Article10.9734/jenrr/2026/v18i8530
Angela Atata, Victor Chukwuemeka Eze, Chihurumnanya Ola Oji, Peter Izuoba Okoye, Omuluche Collins O., Okpoji Awajiiroijana U., Alieze Anthony Bishop & Joseph Jerry·Asian Journal of Applied Chemistry Research·2026
Background: Polycyclic aromatic hydrocarbons (PAHs) are persistent organic contaminants capable of accumulating in aquatic sediments and posing ecological concerns in estuarine environments exposed to petroleum-related and other anthropogenic activities. The Ataba–Bodo estuarine...
Open access
Research Article10.9734/ajacr/2026/v17i4425
Samuel Oji Iheukwumere, Modestus Ohaegbulem, Okoye Chinenye V., Gambo Farida, Bassey Aniekpeno B., Eyibara Oghenehokoke U., Omuluche Collins O., Angela Atata, Okpoji Awajiiroijana U., Obi Justina N. & Monday William T.·International Journal of Pathogen Research·2026
Petroleum contamination of coastal soils poses significant environmental concerns due to the persistence and ecological toxicity of petroleum hydrocarbons. This study evaluated the potential of indigenous microorganisms for the bioremediation of petroleum-contaminated coastal soi...
Open access
Research Article10.9734/ijpr/2026/v15i5489