Spatial and temporal variations of physical-chemical parameters of the Akor River in Ikwuano local government of Abia state, Nigeria

Abstract. Physical-chemical parameters of the Akor River were investigated. The river water was sampled for seven months (February August) in 2019 and analysed following standard procedures protocols. results revealed that there no significant differences (P > 0.05) among all investigated physical-chemical across stations. Mean values within Federal Ministry Environment set standards (2011) except chemical oxygen demand pH. Spatiotemporal turbidity, total suspended solids, dissolved major cations (Na+, K+, Ca2+, Mg2+) as well anions (PO43-, NO3- SO42-), high during rainy season months, but temperature, pH, oxygen, biochemical higher dry months. percentage Na+ contents ranged from 15.85 to 16.39%, indicating has excellent irrigation quality. Nemerow pollution index varied 0.59 0.63, also is good quality 52.70 54.50%, a status. result status capable sustaining biodiversity crop irrigation.