Seasonal Variation of Heavy Metals Concentration of Industrial Effluents and Receiving Rivers in Iguosa and Ikopba, Benin City, Edo State, Nigeria

A. Adeleke, S. Adegbite, A. Onifade, A. Sangoremi, A. Adegbite
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Abstract

This study was carried out to investigate the impact of pollution on the receiving waters (Iguosa and Ikopba rivers) in Benin City. Effluents and water samples were analysed quantitatively for the presence of lead (Pb), Copper (Cu), Chromium (Cr), Manganese (Mn), Iron (Fe), Zinc (Zn) and Nickel (Ni) for both wet and dry season were determined using Atomic Absorption Spectrometer (AAS). Heavy metals analysis results for 7-Up Bottling Company showed that Pb (0.06mg/L – 0.97mg/L), Cu (0.12mg/L – 2.84mg/L), Cr (0.5mg/L – 8.16mg/L), Mn (0.88mg/L – 4.36mg/L), Fe (0.55mg/L – 7.55mg/L), Zn (0.38mg/L – 3.97mg/L), Ni (0.27mg/L – 1.66mg/L) and Cd (0.03mg/L – 0.74mg/L) while results for Guinness Nigeria Plc showed that Pb (0.06mg/L – 0.95mg/L), Cu (0.07mg/L – 2.62mg/L), Cr (0.14mg/L – 2.96mg/L), Mn (0.16mg/L – 6.63mg/L), Fe (0.31mg/L – 4.96mg/L), Zn (0.14mg/L – 7.98mg/L), Ni (0.12mg/L – 1.69mg/L) and Cd (0.03mg/L – 0.56mg/L) for both wet and dry season. This showed that the concentrations of the metals were higher during wet season than the dry season except that of lead and cadmium. However, the presence of metals at various concentrations revealed that the effluents from these industries contaminated the stream.
尼日利亚江户州贝宁市Iguosa和Ikopba工业废水和接收河流重金属浓度的季节变化
进行这项研究是为了调查污染对贝宁市接收水域(伊戈萨河和伊科普巴河)的影响。利用原子吸收光谱仪(AAS)定量分析了湿季和旱季出水和水样中铅(Pb)、铜(Cu)、铬(Cr)、锰(Mn)、铁(Fe)、锌(Zn)和镍(Ni)的含量。7-Up装瓶公司的重金属分析结果显示:Pb (0.06mg/L - 0.97mg/L)、Cu (0.12mg/L - 2.84mg/L)、Cr (0.5mg/L - 8.16mg/L)、Mn (0.88mg/L - 4.36mg/L)、Fe (0.55mg/L - 7.55mg/L)、Zn (0.38mg/L - 3.97mg/L)、Ni (0.27mg/L - 1.66mg/L)和Cd (0.03mg/L - 0.74mg/L); Guinness Nigeria Plc的结果显示:Pb (0.06mg/L - 0.95mg/L)、Cu (0.07mg/L - 2.62mg/L)、Cr (0.14mg/L - 2.96mg/L)、Mn (0.16mg/L - 6.63mg/L)、Fe (0.31mg/L - 4.96mg/L)、Zn (0.14mg/L - 7.98mg/L)、Ni (0.12mg/L ~ 1.69mg/L)和Cd (0.03mg/L ~ 0.56mg/L)在旱季和雨季均适用。结果表明,除铅和镉外,其他金属的浓度在雨季均高于旱季。然而,不同浓度金属的存在表明,这些工业的废水污染了河流。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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