Garuba Muhammed H.

Assessment of Chemical Contaminants in Street-vended Foods and Associated Dietary Health Risks in Port Harcourt Metropolis, Rivers State, Nigeria

Garuba Muhammed H., Okpoji Awajiiroijana U., Ajawobu Innocent O., Oji Chihurumnanya O., Obinna Vincent O., Abdulwahab Nazeemdeen A., Jerry Joseph, Onyeyili Ikemefuna N., Ezekwueme Obianuju I. & Otabor Osaretin W. · Asian Journal of Food Research and Nutrition · 2026

Background: Street-vended foods constitute an important source of affordable meals in urban centres but may contain chemical contaminants that pose potential public health risks. Aim: This study assessed the levels of chemical contaminants in street-vended foods and evaluated the...

Open access Research Article 10.9734/ajfrn/2026/v5i3429

Water Quality and Ecotoxicological Impacts of Surfactants and Heavy Metals in Urban Rivers of Benin City, Niger Delta, Nigeria

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 Article 10.9734/ajoger/2025/v8i3223

Geochemical and Ecological Risk Assessment of Petroleum Hydrocarbons in Sediments of Forcados River, Delta State

Umueni, Uchenna E., Etukudo, Nsikan J., Okoye, Peter I., Okpoji, Awajiiroijana U., Eze Victor C., Aningo Gloria N., Ekwere, Ifiok O. & Garuba Muhammed H. · Asian Journal of Geographical Research · 2025

Petroleum hydrocarbon contamination remains a significant environmental issue in the Niger Delta due to intense oil exploration, transportation, and artisanal refining. This study examined the geochemical features and ecological risks associated with petroleum hydrocarbons in sed...

Open access Research Article 10.9734/ajgr/2025/v8i4337

Comparative Evaluation of Biodiesel Yield, Fuel Properties and Oxidative Stability of Waste Cooking Oil and Selected Niger Delta Plant Oils

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 Article 10.9734/jenrr/2026/v18i9534