August 2025

Effect of Land use change and soil depth on selected soil physicochemical properties at Dale Sedi District, Western Ethiopia

Land use changes, mainly from natural vegetation to cultivated land brought about rapid nutrient depletion. The main objective of this study was to assess the effect of land use change and soil depth on selected soil physicochemical properties at Dale Sedi District Western Ethiopia. Eighteen soil samples were collected randomly at (0-20 and 20-40 cm) depth from the cultivated, forest and grazing lands. Then, statistical...

Author(s): Samuel Taye and Kumera Getaneh  

October 2025

Investigation of polycyclic aromatic hydrocarbons and organochlorine pesticides in the water and sediment of River Ogun around the Cattle Market, Isheri along Ibadan-Lagos Express Road, Nigeria

This study investigated the concentrations and distributions of polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs) in the water and sediments of Ogun River, specifically around the cattle market at Isheri along the Ibadan-Lagos expressway. The results showed that PAH concentrations were higher in sediment (ranging from 1.391 to 1.564 µg/g) than in surface water (ranging from 1.215 to...

Author(s): Arogundade Obafemi, Oluwabusayo Aramide and Yekeen Oderemi