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Evaluation of Surface Waters Quality Obtained from Different Sources of Mymensingh Didtrict of Bangladesh

Zannatul Ferdous
Department of Farm Structure, Bangladesh Agricultural University.

M. F. Haque
Assistan manager
Petrobangla, Dhaka.

M. A. Hosain
IWM Division, Bangladesh Rice Research Institute.

M. M. Rahman
Farm Machinery and Post-harvesting Process Engineering Division, Bangladesh Agricultural Research Institute.

Abu Sayed
Department of Agricultural Engineering, Exim Bank Agricultural University, Bangladesh.

Abstract/ Executive Summary:

The present study was conducted to assess some chemical properties and heavy metals of surface waters collected from different sources at Bangladesh Agricultural University Campus and Mymensingh Sadar Upazila for common use. Twelve water samples were collected from 4 different locations during February to April 2011 for analyzing their chemical quality parameters. The recorded values of pH, EC (Electrical Conductivity), TDS (Total Dissolved Solid), DO (Dissolved Oxygen), As, Pb and Fe were found to range from 6.153 to 7.043, 0.194 to 0.679 mS/cm, 106.333 to 389.333 ppm, 4.433 to 4.9 ppm, 0.064 to 1.756 ppb, 0.00053 to 0.00083 ppm and 0.567 to 1.795 ppm, respectively. pH and TDS of the surface water were within the standard value but other parameters such as As, Pb, and Fe were significantly higher than the standard for drinking water. The correlation analysis among chemical and heavy metal properties indicated that all the parameters had significant contribution to pollute the water except DO. The correlation between TDS and EC was strongly significant (r = 0.99**). pH showed positive significant correlation with EC and TDS. Fe showed negative (r = -0.636) significant correlation with As. The above findings show that the surface water in Mymensingh area is being gradually polluted by unplanned discharge of chemicals and heavy metals contained effluents. It might be concluded that the water is not so harmful yet for irrigation, aquaculture and livestock usage.

Keywords: Chemical properties, Heavy metal, Surface water, Water quality

Location: Sutiakhali pond, Pagharia bill, Brahmaputra river and Guest house drain of sadar upazilla under Mymensingh district, Bangladesh.

Start Date: 00-02-2011

End Date: 00-04-2011

Program Area: Risk Management in Agriculture

Commodity: Water quality

Objectives:

To assess the quality of surface water of some selected sources.

Methodology:

Surface water samples were collected, from Sutiakhali pond, Pagharia bill, Brahmaputra river and Guest house drain of sadar upazilla under Mymensingh district, Bangladesh. Twelve samples were collected from 4 different places from February to April 2011. Each bottle was peeped accordingly and then washed with tap water followed by distilled water before sampling. Bottles were rinsed again 3 to 4 times with water to be sampled. About 100 ml water samples was collected in plastic bottles and sealed to avoid exposure to air and labeled properly. After collection, all samples were filtered with Whatman No.1 filter paper to remove unwanted solid and suspended materials before analysis. Then the water was transferred into another 100 ml bottle which contained 10 ml 2M hydrochloric acid solution to protect the water samples from any fungal and other pathogenic attack. All water samples were then carried to the "Soil & Water Engineering Laboratory", the Agri-varsity Humboldt Soil Testing Laboratory, Water quality and Pond Dynamics Laboratory (BFRI) and Central Laboratory of Bangladesh Institute of Nuclear Agriculture (BINA). The pH values of water samples were determined by KARL KOLB WTW pH meter. A 100 ml of water sample was taken in a 200 ml beaker and the pH electrode was inserted into the water. The automatic digital reading were recorded and tabulated for analysis. Electrical Conductivity (EC) of the water was measured by taking 100 ml samples in' a beaker. The cell of conductivity meter was rinsed with distilled water and then placed in the collected water sample. The electrical conductance of samples was determined electro metrically using conductivity meter (KARL KOLB (company) WTW LF 521). The Total Dissolved Solids (TDS) in water mainly were determined electrometrically using conductivity meter (TDS meter Model- OAKTON ^pH/con 300, CAT NO. U 35631-00 Made in USA). DO of the water was measured by taking 100 ml samples in a black bottle. DO was measured in water quality and pond dynamics laboratory (BFRI) by DO meter model no. JENCO No-9173 made in USA.

Source of Information: The Agriculturists 13(1): 189-195(2015), ISSN 1729-5211

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The above findings show that the surface water in Mymensingh area is being gradually polluted by unplanned discharge of chemicals and heavy metals contained effluents. It might be concluded that the water is not so harmful yet for irrigation, aquaculture and livestock usage.

Knowledge Management: Journal