Ohaturuonye Sampson O., Ekwere Ifiok O., Ekesiobi Sandra U., Robinson Bright E., Okpoji Awajiiroijana U., Osuagwu Eze L. & Okpanachi Clifford B.·Asian Journal of Research in Zoology·2026
Heavy metal contamination of aquatic environments poses significant ecological and public health concerns in the Niger Delta, where fish constitute a major source of animal protein. This study assessed and compared the concentrations of ten heavy metals in farmed catfish from fiv...
Open access
Research Article10.9734/ajriz/2026/v9i1243
Okpoji Awajiiroijana U., Orji-Azuka Loveth N., Igwegbe Kelvin C., Ekwere Ifiok O., Ewuola Akinola A., Garuba Muhammed H. & Etukudo Esther W.·Asian Journal of Geological Research·2025
Urban rivers in Nigeria are increasingly affected by detergent residues, domestic wastewater, and trace-metal inputs associated with rapid urbanisation. This study assessed the physicochemical characteristics, surfactant concentrations, and selected heavy metals in three urban ri...
Open access
Research Article10.9734/ajoger/2025/v8i3223
Ekesiobi Sandra U., Ekpe, John E., Okpoji, Awajiiroijana U., Hassan Dasuki H., Ekwere Ifiok O., Awortu Raymond C., Etesin Monday U., Nwofia Ugochukwu., Okeke Chioma F. & Nwankwo Austin O.·Asian Journal of Chemical Sciences·2025
This study evaluates the hydrochemical characteristics and trace-metal contamination of drinking-water sources in Brass Island, Bayelsa State, Nigeria, and assesses their potential health implications. Twelve water samples were collected from boreholes, hand-dug wells, and surfac...
Open access
Research Article10.9734/ajocs/2025/v15i6406
Ohaturuonye Sampson O., Okpoji Awajiiroijana U., Akpan Nsima A., Njoku Chukwunonso A., Isaac Stanley C., Etesin Monday U. & Ekwere Ifiok O.·Asian Journal of Research in Zoology·2025
Aquatic organisms inhabiting petroleum-impacted estuaries of the Niger Delta are frequently exposed to complex mixtures of heavy metals and hydrocarbons capable of inducing biochemical and physiological stress. This study evaluated the concentrations of Pb, Cd, Hg, As, Cr, and to...
Open access
Research Article10.9734/ajriz/2025/v8i4233
Umueni, Uchenna E., Rasheed Habib O., Edodi Iyam O., Aningo Gloria N., Okpoji, Awajiiroijana U., Etesin Monday U., Okonkwo Chidiebere C., Ekwere Ifiok O., Okeke Chioma F. & Anarah Samuel E.·Asian Journal of Agricultural and Horticultural Research·2025
The present study evaluated the extent of nutrient enrichment and eutrophication potential of the Otuoke River in Bayelsa State as influenced by agricultural runoff. Nine surface water samples were collected from three monitoring stations located upstream, midstream, and downstre...
Open access
Research Article10.9734/ajahr/2025/v12i4424
Osuafor Ogonna O., Okeke Chioma F., Agu Mathew O., Isueken Christian O, Aligwo Michael C., Ohaturuonye Sampson O., Okpoji, Awajiiroijana U, Etesin Monday U. & Ekwere Ifiok O.·Asian Journal of Agricultural and Horticultural Research·2025
Agricultural runoff is a major global non-point source of water contamination, contributing substantially to nutrient enrichment, heavy metal loading, and hydrogeochemical alteration in freshwater systems, particularly in humid tropical regions. This study assessed the influence...
Open access
Research Article10.9734/ajahr/2025/v12i4427
Okpoji, Awajiiroijana U, Ogbaji Henderson O., Hassan Dasuki H., Orji-Azuka Loveth N., Rasheed Habib O., Ohaturuonye Sampson O., Ejeka Joshua C., Okpanachi Clifford B. & Ekwere Ifiok O.·Asian Journal of Physical and Chemical Sciences·2025
Gas flaring continues to be a persistent source of environmental pollution in the Niger Delta, releasing volatile organic compounds (VOCs) that contribute to atmospheric degradation and aquatic contamination. This study assessed the physico-chemical transport of VOCs from gas fla...
Open access
Research Article10.9734/ajopacs/2025/v13i4271