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

International Journal of Environmental Protection 04/2012;

ABSTRACT 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.

  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Water quality monitoring of ten pit lakes located in Raniganj Coal Field area, West Bengal were investigated for successive three years during 2009-2012. The nature of the studied pit lakes were found to be alkaline (mean pH 7.73) along with significant variation in terms of hardness, dissolve solid, chloride and sulfate content in pit lake water. Classical significant positive correlation was noted for Total hardness with Calcium(r=0.990) and Magnesium Hardness(r=0.995). Total hardness were also positively correlated with Dissolved solid(r=0.961) and Sulfate(r=0.975) concentration in pit lakes. PCA revealed that pH is the key influential factors in PL 1, 8, 9, 10. In PL 2, 4 and 3, 5 alkalinity/iron content and Chloride content were significant respectively. Hardness (Total, calcium and magnesium) with sulfate is the key influential factors which may play a vital role in water quality of PL 7 and 6. The present investigation deals with assessment of Pit Lake water quality along with temporal and spatial variation. From the results it was found that the water resource of the selected pit lakes can be utilized potentially in different eco-development practices in terms of aquaculture, agriculture as well as eco-tourism activities.
    Journal of Applied Sciences in Environmental Sanitation. 03/2014; 9(1):1-6.
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The study comprised suitability assessment of groundwater of western peri-urban area of Khulna City Corporation (KCC) for drinking and irrigation use. A total of 40 groundwater samples representative of 4 different seasons were collected from 5 different sampling locations from Rayermahal to Sachibunia to analyse major physico-chemical parameters and trace metals according to the Standard Methods. The results of the study, comparing with the World Health Organization and Bangladesh Standards, reveal the suitability of the groundwater for drinking purpose. Suitability for irrigation was also assessed and found low as most of the calculated parameters reveal high values which can render salinity and alkali hazard to soils on long term use in irrigation. The results shown that all the groundwater samples were contaminated with high salinity in the study area, and are in the 'Doubtful to Unsuitable' or 'Unsuitable' category and are unsuitable to irrigate all soils.
    Research Journal of Pharmaceutical, Biological and Chemical Sciences 10/2014; 1(1):113-122. · 0.35 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Water quality in the aquatic body of Dhaka Export Processing Zone (DEPZ) area was studied on the basis of some physiochemical parameters and heavy metal concentrations. Physiochemical parameters like pH, Electrical Conductivity (EC), Chemical Oxygen Demand (COD), Total Dissolved Solids (TDS) and concentrations of some heavy metals like As, Cd, Cu, Co, Cr, Fe, Mn, Ni, Pb, Hg and Zn were measured. Among different physiochemical parameters, pH, TDS and EC were found within the range. The range of pH for all of the samples was found from 7.1 to 8.17 and 120 to 450 mg/L for TDS. The Values of EC were found from 90 to 300 µs cm -1 . For pH, EC and TDS, though the ranges were within the limits but there was an increasing trend of the values was observed in every case which is highly alarming. The range of COD values was estimated from 90 to 300 mg/L and in most of the samples the values exceeded the standard range. The heavy metal containments of the surface water indicated that the concentrations of Cr, Cu, Ni, Zn, Hg and As were obtained below the permissible limit, detection by WHO, 1996. On the other hand, concentrations of Cd, Co, Fe, Pb, Mn and Hg were exceeded the permissible limits. Correlation matrix shows a significant correlation among Pb, Cu, Co, Mn and Fe. Enrichment factor shows high concentrations of Cd, Cr and Hg. Stated environmental condition is highly vulnerable for human being, that's why this is the time to take proper steps for remediation and preventing the pollution around DEPZ water body which is directly related to the industrial emission of DEPZ.
    10/2014; 314(3):232-237.


Available from
Jun 2, 2014