Remediation of arsenic-concentrated waters in a highly urbanized Nigerian city

摘要: Arsenic is a toxic metal with adverse effect on health, hence the need for geochemical evaluation of water sources to determine level arsenic concentration, their and propose remediation method stem tide pollution in Ibadan, highly urbanized city South west Nigeria. Thirty samples were randomly taken study area at locations underlain by quartzite (8), banded-gneiss (14) augen-gneiss (8). Furthermore, 14 effluents rocks (fresh weathered) also collected analyzed ascertain source arsenic. Remediation studies using phytoremediation carried out. Phytoremediation was done cultivation matured hyacinth (Eichhornia crassipes) 10.0, 20.0, 50.0 100.0 mg/L acid. content all determined Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). Plants harvested, dried, pulverized analysed inductively coupled-ion chromatography. Mean concentration underlying rock units 0.01 mg/L; however, high obtained (0.02 mg/L) (0.8 ppm). This implied that derived from areas close proximity could be susceptible contamination. The calculated Pollution index revealed levels effluents. Highest bio-accumulation found 100 mg/l hyacinth. Water Ibadan metropolis are contamination leaching weathered