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Article – Journal of Environmental Sciences

Journal of Environmental Science and Pollution Research, Volume 3,Issue 3,2017 Pages 200-202

Monitoring and Impact Assessment of Gaseous Pollutant in Ambient Air of BSCIC, Bagerhat, Bangladesh
Kazi Benazir Haider*, Nazia Hassan, Sharmishtha Roy

Air pollution is one of the major environmental problems in Bangladesh. Exposure to high concentration of gaseous pollutant has a potential impact on human health. The present study dealt with the concentration of gaseous pollutants emitted by the Bangladesh small cottage industries and Corporation (BSCIC), Bagerhat. The air samples were collected by grid sampling from fourteen monitoring stations during the dry season (October, November, and December) in 2015. The concentration of SOX and NOX in the ambient air is analyzed by the following laboratory methods – (a) Modified West and Grek method for determination of Sulpher dioxide, (b) Sodium Arsenite method for determination of Nitrogen oxides in ambient air. A questionnaire survey was randomly carried out to know the health status of the worker in the BSCIC, Bagerhat. Assessment data showed that average concentration of SO2 (764.448 μg/m³) was higher than the standard limit and the average concentration of NOX (80.04 μg/m³) was within the limit according to WHO. Concentrations of oxides in the air are strongly influenced by the emissions taking place from the burning of bio fuels (shell, coir, and rice husk), improper design of combustion chamber and low height of the stack. It is observed that high concentration of SOX and NOX adversely affects human health. As a consequence, workers are suffering from the respiratory problem, eye irritation cough, and chronic bronchitis.

Keywords: Gaseous Pollutant; BSCIC; Agro-Industry; Health Impact; WHO Standard;