Groundwater quality assessment of aba urban area

B. Uwaoma, O.M. Ibearugbulem
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Abstract

This work presents groundwater quality assessment of Aba Urban area and its sources of Contaminants within Aba Urban Area. Aba area was divided into nine parts using a 3x3 grid. Water samples were taken from each of these 9 parts of Aba. Five water samples were taken from household boreholes while four samples were taken from boreholes drilled and cased at the remaining four parts in the course of carrying out this research. Site and laboratory tests were conducted to determine the values water parameters in the samples. The parameters analysed in the laboratory include the Phosphate, ammonium, Lead, cadmium, Manganese, Copper, Mercury, Chromium, and magnesium, Electric conductivity (EC), Dissolved oxygen (DO), Total dissolved solid (TDS), Acidity, Turbidity, Alkalinity, oxidation- reduction potential (ORP), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and E-Coli. It was discovered that more than 75% of the water samples are contaminated by EColi. Umuagu sample has Manganese value of 0.775mg/l. This more than the limiting value of 0.4mg/l. The values 252, 524 and 472 mg/l of Magnesium in samples from Estate, Abia Polytechnic and Osisio Ngwa respectively are more than the limiting value of 150mg/l. The DO (mg/l) values of 6,4 and 9 from Ariaria Junction and Abia Polytechnic are outside the range limiting of 6.5mg/l – 8.0 mg/l. The values of TDS, ORP and BOD recorded in all the samples are below the limiting values of 600 mg/l, 357 mV and 1mg/l respectively.
阿坝市区地下水水质评价
本文介绍了阿坝市区地下水水质评价及其污染物来源。阿坝区域用3x3的网格划分为9个部分。分别从阿坝的这9个地区采集水样。5个水样取自家庭井眼,4个水样取自在开展本研究过程中其余四个部分钻探和套管的井眼。进行了现场和实验室测试,以确定样品中的水参数值。实验室分析的参数包括磷酸盐、铵、铅、镉、锰、铜、汞、铬和镁、电导率(EC)、溶解氧(DO)、总溶解固体(TDS)、酸度、浊度、碱度、氧化还原电位(ORP)、生物需氧量(BOD)、化学需氧量(COD)和大肠杆菌。调查发现,超过75%的水样被大肠杆菌污染。Umuagu样品的锰值为0.775mg/l。这超过了0.4mg/l的限值。Estate、Abia Polytechnic和Osisio Ngwa样品的镁含量分别为252、524和472 mg/l,均超过150mg/l的限值。Ariaria Junction和Abia Polytechnic的DO (mg/l)值6,4和9超出了6.5mg/l - 8.0 mg/l的限制范围。所有样品的TDS、ORP和BOD均低于限定值600 mg/l、357 mV和1mg/l。
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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来源期刊
CiteScore
0.10
自引率
0.00%
发文量
126
审稿时长
11 weeks
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