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Assessment of Ionic Pollution in Pond Waters at Patuakhali Science and Technology University Campus

A.K.M. Faruk-E-Azam
Department of Agricultyral Chemistry, Patuakhali Ecience and Technology University, Dumki, Patuakhali

Abstract/ Executive Summary:

A research work was carried out in the Department of Agricultural Chemistry, PSTU, Dumki, Patuakhali in February to July-2013 on water of ponds at Patuakhali Science and Technology University campus to assess the pollution caused by ionic constituents. Waters were collected from six ponds. The pH, EC, K, Ca, Mg, S, P, B, Mn, Cu, Fe, Zn, Cd, Pb, Cl and Cr were analyzed. All the waters were found slightly alkaline and non saline. Most of the pond waters were polluted by Mg, S, Cl, Mn, Fe and Cd and recorded at toxic level for aquaculture. Pond no. 2 was highly contaminated. The amounts of other parameters were found within the recommended level. The order of ionic concentration in water was found as Ca > Mg > K > S > P and Cl > B > Mn > Fe > Zn > Cr> Cu > Cd > Pb. The trend of contaminated ponds was observed as pond no. 2 > pond no. 6 > pond no. 3 > pond no. 4> pond no.1> pond no. 5.

Keywords: Assessment, Ionic pollution, Pond waters, PSTU.

Location: Different ponds situated in the PSTU campus

Start Date: 00-02-2013

End Date: 00-07-2013

Program Area: Quality and Nutrition

Commodity: Water quality

Objectives:

1. To acquire knowledge on this vital issue for framing guide lines of pond management. Data generated in the study will be treated as base line information.

Methodology:

Description of the ponds: Different ponds situated in the PSTU campus were used as the water source of this study. Collection of water samples: Water and bottom soil samples were collected from 6 ponds of PSTU campus. Technique for water sampling was followed as outlined by APHA. Waters were collected in 500 mL plastic bottle which were previously cleaned with dilute hydrochloric acid and followed by distilled water. Before taking samples, the bottles were rinsed three times with water to be sampled. Water samples were collected from the middle and few centimeters below the surface. The bottles were caped, labeled and brought to the laboratory. The samples were analyzed soon for different parameters. Analytical methods for water samples: The chemical analyses were done according to the following methods: Water pH was measured by a glass electrode pH meter. Electrical conductivity (EC) of water was determined by conductivity meter. Azomethine-H was used for the analysis of boron. Phosphorus was determined colorimetrically using SnCl2 as a reducing agent. Potassium was determined flame photometrically. Sulphur of water was analyzed turbidimetrically. Ghloride was determined by argentometric method of titration. Calcium, Mg, Zn, Cu, Mn and Cr were analyzed by atomic absorption spectrophotometer.

Source of Information: J. Agrofor. Environ. 7 (2): 189-191, 2013; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

All the waters were found slightly alkaline and non saline. Most of the pond waters were polluted by Mg, S, Cl, Mn, Fe and Cd and recorded at toxic level for aquaculture. Pond no. 2 was highly contaminated. The amounts of other parameters were found within the recommended level. The order of ionic concentration in water was found as Ca > Mg > K > S > P and Cl > B > Mn > Fe > Zn > Cr> Cu > Cd > Pb. The trend of contaminated ponds was observed as pond no. 2 > pond no. 6 > pond no. 3 > pond no. 4> pond no.1> pond no. 5.

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