Anumaka Collins C.

Comparative Chemical Characterisation of Produced Water from Onshore and Offshore Oil Fields in the Niger Delta, Nigeria

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 Article 10.9734/ajocs/2026/v16i5469

Assessing Hydrological and Sediment Factors for Ecotoxicological Risk of the Orashi River, Rivers State, Nigeria

Umueni Uchenna E., Ogbaji Henderson O., Okpoji Awajiiroijana U., Osuagwu Eze L., Akpan Nsima A., Ekpe John E., Okabekwe Veraline C., Anumaka Collins C., Obiefuna Grace C. & Warder Amaminor B. · Asian Journal of Geological Research · 2026

Rivers in the Niger Delta deliver vital ecological and economic benefits but face increasing pressures from human activities that disrupt hydrology and harm sediment quality. This research assessed the hydrological features, sediment condition, and ecological risks of the Orashi...

Open access Research Article 10.9734/ajoger/2026/v9i1230