Surface Water Pollution around Dhaka Export Processing Zone and Its Impacts on Surrounding Aquatic Environment

Authors

  • M. S. Islam Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama 930?8555, Japan
  • A. Sultana Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama 930?8555, Japan
  • M. S. Sultana Professor Department of Environmental Science Jahangirnagar University Dhaka, Bangladesh
  • M. Shammi Assistant Professor Department of Environmental Science Jahangirnagar University Dhaka, Bangladesh
  • M. K. Uddin Professor Department of Environmental Science Jahangirnagar University Dhaka, Bangladesh

DOI:

https://doi.org/10.3329/jsr.v8i3.27819

Keywords:

Industrial effluents, Surface water quality, DEPZ Industrial area, Water pollution, ETP.

Abstract

This study based on the physicochemical parameters was conducted in order to determine the pollution status in the aquatic body of Dhaka Export Processing Zone (DEPZ) area. A total of 5 water samples were collected on the basis of their distance from the effluent outlet and were examined. Physicochemical parameters like color, temperature, pH, electric conductivity (EC), total dissolved solid (TDS), total suspended solid (TSS), total hardness, total alkalinity, dissolved oxygen (DO), biochemical oxygen demand (BOD) and chemical oxygen demand (COD) were measured via standard determination method. Physicochemical analyses revealed that most of the water quality parameters exceeded the recommended levels set by the Department of Environment (DoE), Bangladesh. The concentrations were found decreasing with increasing distance from the effluent outlet. A very strong positive correlation was found between BOD and COD in all sampling points. Both BOD and COD values had a strong negative correlation with dissolved oxygen (DO). The results indicated that the surrounding aquatic environment is exceedingly contaminated by various pollutants released from DEPZ which is highly vulnerable for the species on that ecosystem.


Downloads

Download data is not yet available.
Abstract
2293
PDF
1543

Downloads

Published

2016-09-01

How to Cite

Islam, M. S., Sultana, A., Sultana, M. S., Shammi, M., & Uddin, M. K. (2016). Surface Water Pollution around Dhaka Export Processing Zone and Its Impacts on Surrounding Aquatic Environment. Journal of Scientific Research, 8(3), 413–425. https://doi.org/10.3329/jsr.v8i3.27819

Issue

Section

Section B: Chemical and Biological Sciences