An Assesment of Arsenic Contamination of Tube-well Water in 17 No Ward of Chattogram City, Bangladesh

F.T. Jahara, M. Maniruzzaman and M. S. Shah
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F.T. Jahara: Lecturer,Department of Civil Engineering, Southern University Bangladesh
M. Maniruzzaman: Student, Department of Civil Engineering,Southern University Bangladesh
M. S. Shah: Student, Department of Civil Engineering,Southern University Bangladesh

International Journal of Research and Innovation in Social Science, 2021, vol. 5, issue 7, 574-579

Abstract: Arsenic contamination of groundwater has now resulted in world-wide human health problems affecting millions of people across a large number of countries such as India, Pakistan, Thailand, China, Nepal and also in Bangladesh. In 1998-1999, DPHE & BGS, United Kingdom conducted a study which identified 61 districts out of total 64 in Bangladesh as arsenic affected. In 2008, CUET and the IEBC have been made a joint survey in 41 wards of Chattogram city and they have been found arsenic in shallow tube well water in 13 city wards which exceed WHO guidelines values of 0.01mg/l for drinking water. The present study was carried out to identify the Arsenic (As) contaminated tube-wellsin 17 no West BakaliaWard under Chattogram City Corporation. This work was done using HACH EZ Arsenic Test Kit in the field and then compared with Bangladesh Drinking Water Standard (0.05 mg/l) and WHO guidelines value (0.01 mg/l). It is revealed from the study that mostly 69.23% tube-wells are deep and 30.76% are shallow. Maximum depth of tube-wells is 650 feet and minimum depth is 70 feet. Among 169 samples, Arsenic is detected in 2.36% water samples and remaining 97.64% are Arsenic free. The maximum value of arsenic is found in the range of 0.25~0.05mg/l at Police Bit, Rahatturpul area.

Date: 2021
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