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

International Journal of Environmental Protection 04/2012;


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. All rivers were severely polluted with NO x , 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 rivers 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 swelling into the sediments. High health risks were envisaged 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.

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Available from: Dr. Md. Tajuddin Sikder,
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    • "Water pollution caused by chemical substances such as heavy metals affects tropical rain forest and river ecology. Heavy metals can accumulate from water to sediments through settling process and some particles can also find their ways into the biota [1]. Bangladesh is said to be the land of rivers [2]. "
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    • "Untreated municipal sewage, effluents, and unplanned industrial and agricultural operation render the groundwater non-potable and unfit for agriculture (Bruce and McMahon, 1996). In addition, the presence of toxic pollutants like pesticides, arsenic, nitrate (Bruce and McMahon, 1996), fluoride (Chandrawanshi and Patel, 1999), hardness and iron (Sikder et al., 2012) etc. in groundwater may cause potential health hazard to human. Pollution of ground water has been reported to cause 80% of human diseases and 30% infant mortality in developing countries (Chakroborty, 1999). "
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