Comparative Assessment of Water Quality in the Major Rivers of Dhaka and West Java

Comparative Assessment of Water Quality in the Major Rivers of Dhaka and West Java
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达卡和西爪哇主要河流水质比较评估

DOI:
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发表时间:
2012
期刊:
--
影响因子:
--
通讯作者:
M. Kurasaki
M. Kurasaki
中科院分区:
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文献类型:
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作者:
Md. Tajuddin Sikder;M. Yasuda;Yastiawati;Suhaemi M. Syawal;Takeshi Saito;Shunitz Tanaka;M. Kurasaki

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对印度尼西亚西爪哇和孟加拉国达卡的一些主要河流的一般水质进行了广泛的比较研究。提出了基于物理化学调查的水质评价方法,沿着分析了水体和沉积物中重金属的含量。结果表明,在达卡的河流中的最大采样点是严重受损的西爪哇省的河流相比。而且,达卡河流的污染差距在冬季与雨季相比污染突出的季节很明显。所有河流均受到NOx、PO 43-和大肠杆菌的严重污染。大部分采样点的重金属元素Al、Mn含量超标,Cu、Zn、Pb含量低于国际标准。而达卡的Cd和Fe接近阈值。通过富集研究,发现每种金属在Ciliwung河和Cikaniki河中都占主导地位;而达卡的河流几乎没有富集值,充分报告了金属来源的显著差异,沿着床沉积物中金属的富集趋势升高。重悬实验也表明了相同的趋势,金属膨胀到沉积物中。由于Cikaniki河的沉积物(0.83-1.07微克/克)和水稻样本(0.08微克/克)中的有毒汞含量接近印度尼西亚的基准值,因此预计会产生高健康风险。根据结果,很明显,在西爪哇和达卡的河流中的金属,有机物和粪便污染的情况有些可怕,需要立即采取补救措施。
A comparative study of general water quality has been extensively studied in some major rivers of West Java, Indonesia and Dhaka, Bangladesh. Water quality assessment based on physiochemical investigation along with heavy metal concentration in water and sediments is presented. The results indicate that maximum sampling sites in the rivers of Dhaka are severely impaired in comparison with the rivers of West Java. And, the pollution gap in the rivers of Dhaka is evident in respect of the season where pollution in winter is eminent in comparison with rainy seasons. A ll rivers were severely polluted with NOx, PO 4 3- and Escherichia coli (E-coli). The heavy metal concentration of Al and Mn exceeded whereas, Cu, Zn and Pb were found to be below the international guidelines in most of the sampling points. And, Cd an d Fe approached the threshold limit in Dhaka. With the enrichment study, every metal was found predominant in both the Ciliwung and the Cikaniki River; while rive rs of Dhaka comprise little enrichment value adequately report noteworthy difference in metal sources along with elevated accumulation trends of metals into the bed sediments. The re-suspension experiment also suggests identical trends of metal swell ing into the sediments. High health risks were envisage d due to the presence of toxic mercury in sediments (0.83-1.07 µg/g) of the Cikaniki River and paddy samples (0.08 µg/g ) close to the baseline value of Indonesia. Based on the results, it is evident that metal, organic and fecal pollution in the rivers of West Java and Dhaka are in somewhat dreadful condition that requires immediate remediation step.
DOI: --
发表时间: 2007
期刊: Annual Report of Environmental Conservation and Land Use Management of Wetland Ecosystem in South East Asia 10
影响因子: --
作者:
Kido;M.;他
通讯作者: 他