Assessment of the Water Quality Index of Otamiri and Oramiriukwa Rivers

Assessment of the Water Quality Index of Otamiri and Oramiriukwa Rivers
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奥塔米里河和奥拉米里夸河水质指数评估

DOI：
10.3844/pisp.2010.116.123
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发表时间：
2010
期刊：
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影响因子：
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通讯作者：
J. Yisa
J. Yisa
中科院分区：
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文献类型：
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作者：
Akobundu Nwanosike Amadi;P. Olasehinde;E. Okosun;J. Yisa

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问题陈述：人类活动对Otamiri和Oramiriukwa的影响 由于尼日利亚奥韦里城市化率的提高，河流受到极大关注， 事实上，这些河流的水是分配给公众使用的水源。这些河流 在地表水污染的研究中特别重要，因为工业废水， 城市废物、农业和城市径流排入其中，从而使水质恶化。 方法：本研究应用水质指数（WQI）对某水库水质进行评价， Otamiri和Oramiriukwa河供公众使用。这是通过对180个样本进行测试来完成的。 收集到的样本采用APHA标准进行全面的理化和细菌学分析 分析方法.结果：样本的总体WQI为174.49。高浓度的 电导率、色度、总固体、浊度、总大肠菌群、铁、锰、COD、BOD和硝酸盐 负责高值的WQI，这可能是由于人为干扰沿着 河岸。与尼日利亚饮用水标准相比， 水质（NSDWQ）允许限值显示，河流受到污染， 家庭使用不安全，需要治疗。结论：WQI在阐明中医辨证论治中的应用 地表水质量评价和管理已通过这项研究得到证实。WQI也是 对地表沃茨水污染源进行分类的宝贵工具。
Problem statement: The impact of anthropogenic activities on Otamiri and Oramiriukwa Rivers as a result of the increasing rate of urbanization in Owerri, Nigeria is of a great concern due to the fact that water from these rivers is the source of water distributed for public use. These rivers are of particular importance in the study of surface water pollution because effluents from industries, municipal waste, agricultural and urban run-off are discharged into it thereby deteriorating the quality. Approach: This study used the application of Water Quality Index (WQI) in evaluating the quality of Otamiri and Oramiriukwa Rivers for public usage. This was done by subjecting the 180 samples collected to comprehensive physicochemical and bacteriological analysis using APHA standard methods of analysis. Results: The overall WQI for the samples was 174.49. The high concentration of conductivity, color, total solids, turbidity, total coliform, iron, manganese, COD, BOD and nitrate were responsible for the high value of WQI which may be attributed to the anthropogenic interference along the river bank. The results of the analysis when compared with the Nigerian Standard for Drinking Water Quality (NSDWQ) permissible limit showed that the rivers were polluted and that the water is not safe for domestic use and would need treatment. Conclusion: The use of WQI in elucidating surface water quality evaluation and management has been demonstrated by this study. WQI is also valuable tool in categorizing the pollution sources of surface waters.