Impact of Climate Change on the Influx of Hydrocarbon and Heavy Metals into a Fresh Water System
C. E. Ihejirika, R. F. Njoku-Tony, J. I. Nwachukwu, U. O. Enwereuzoh, D. C. Ashiegbu, C. C. Uche, A. A. Ojiaku
Current Journal of Applied Science and Technology · pp. 3012–3018 · Published 24 May 2014
10.9734/BJAST/2014/10403Abstract
Meteorological events are posing serious environmental challenge especially in freshwater pollution control. Imo River serves as a source of water for domestic uses, agricultural irrigation, fishery and recreational activities and exposed to pollution. Surface water samples were collected in dry and rainy seasons for 2 years, with the aid of 1-liter water sampling cans, from seven major human impacted points. Copper (Cu), zinc (Zn), oil and grease levels, all in mg/L, and pH were determined according to standard methods for the examination of water. There were significant variations in seasons (P=0.05) for oil and grease at all the locations; Ekenobizi (1.42±0.01-1.33±0.01), Udo (1.91±0.01-1.32±0.01), Owerrinta (3.74±0.57-2.36±0.01), Alulu (1.52±0.01-1.22±0.01), Owaza (6.73±1.00-4.22±0.01), Obigbo (4.55±0.01-3.13±0.01), and Akwette (13.75±0.0112.42±0.01). There were significant variations in seasons for copper (mg/L) (P=0.05) at Udo (0.09±0.01-0.06±0.01), Obigbo (0.14±0.01-0.11±0.01), and Akwette (0.19±0.010.15±0.01), while there were none (P=0.05) at Ekenobizi (0.13±1.060.06±0.01), Owerrinta (0.04±0.01-0.02±0.01), Alulu (0.01±0.01-0.01±0.01), and Owaza (0.30±0.10-0.24±0.01). There were no significant variations in seasons (P=0.05) for zinc at; Ekenobizi (0.03±0.01-0.02±0.01), Udo (0.04±0.01-0.03±0.01), Owerrinta (0.04±0.01-0.03±0.01), Alulu (0.04±0.04-0.01±0.01), Owaza (0.20±0.10-0.13±0.06) and Akwette (0.08±0.01-0.07±0.01) while there were significant variations in seasons (P=0.05) at Obigbo (0.14±0.01-0.12±0.01). There were significant variations in seasons (P=0.05) for pH at Ekenobizi, Udo, Owerrinta, Alulu, Owaza and Akwette, while, there were no significant variations in seasons (P=0.05) at Obigbo. Rainfall event contributed to the diffusion of pollutants into Imo River. Environmentally sustainable waste management programs and policies will prevent and protect it from subsequent destruction of the quality.
Cited by 1
Beauclair Nguegang, Timothy Sibanda, Memory Tekere · Environmental Monitoring and Assessment · 2019
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