This research was carried out to examine the socio-economic and health condition of slum dwellers of Kalyanpur slum area. The study was both qualitative and quantitative type. In quantitative approach, primary data were used and collected from randomly selected (68 respondents) slum dwellers in the Kalyanpur slum area. The secondary data were collected from journal papers, articles, books, official documents, thesis papers, daily newspapers etc. By analyzing the survey, it is seen that slum dwellers were deprived of basic needs. The study helps to identify the slum problems such as food and housing problems, poor sanitation condition, poor quality or no sewerage and drainage, inadequate educational facilities, lack of utility services like gas facility, electricity connection, piped water supply etc. From this study it is observed that every family live in a slum in unhygienic environment in poor condition. The slum dwellers work as garments workers (24.2%), household workers (13.7%), rickshaw pullers (19.2%), street hawkers, day labourers, masons etc. The range of household income of slum dwellers was about Tk 6,000 - 10,000 and they spent most of their money on food (61.39% of income). It was also seen that most of the slum dwellers were affected by various kinds of seasonal and waterborne diseases like fever, asthma, skin diseases, diarrheoa, jaundice etc. The study finds that poor socio-economic status and inadequacy of urban services has had an immediate effect on urban health specially the slum poor in metropolitan cities in the country.Bangladesh J. Sci. Res. 29(1): 73-83, June-2016
The study was conducted to investigate the heavy metal contamination in water, sediment and fishes from the Passur river in the Mongla port area near Sundarbans mangrove during the period from January to June 2013. The water samples were collected from five different sampling stations as St-1 (upstream-1km upper from port area), St-2 (port area), St-3 (downstream-1km lower from port area), St-4 (tributary) and St-5 (1 km lower from tributary). Sediment samples were collected monthly from Station-1, 2 and 3 during the study period. The concentrations of heavy metals (Cu, Zn, Fe and Cr) in water were found from water much lower than the permissible level. The concentrations of five heavy metals (Cr, Cu, Ni, Pb and Fe) in the sediment samples were Fe at 23481.61 to 15339.4 mg/kg, while other metals were much lower and found little difference among different months. The result indicated that passerious pollution in the Passur river is due to heavy metals; whereas the concentrations of elements found could mainly be attributed to geological sources. To maintain the sound environment and healthy ecosystem of the river and the surrounding areas, need proper management and monitoring of water quality of the river.
River pollution has been a major problem in Bangladesh as industrial growth has led to increase which use lot of chemicals as raw materials. Moreover, anthropogenic activities continuously increase the amount of heavy metals in the water bodies especially in the lakes, canals, rivers and in aquatic organisms which is an alarming rate and has become an worldwide problem (Malik et al. 2010). Aquatic organisms such as fish and shell fish accumulate metals to concentrations many times higher than present in water or sediment (Gumgum et al. 1994). The river port of Narayanganj is one of the oldest ports in Bangladesh. There are also a number of industrial units on its banks, including the cement factory, jute mills etc. Industrial effluent dumped into the river resulting in high levels of pollution is a cause for concern (Murshed 2012). For this reason, the investigation of physico-chemical parameters of water and heavy metal contamination in water and fishes of the Shitalakhya river is essential since even slight changes in their concentration above the acceptable levels can result in serious environmental and subsequent health problems. With this incentive, the present study was attempted to investigate the status of heavy metal pollution in water and fish of the Shitalakhya river near Narayanganj city.The study area was selected at the Bandar ghat as St-1 and Dhakeshwari ghat as St-2 in the Shitalakhya river at Narayanganj from March to May, 2015. Samples were collected during pre-monsoon and monsoon seasons. To analyze the water quality, 500 ml of water was collected in plastic bottles with double stoppers from each sampling site. The sample bottles were pre-conditioned with 5% HNO 3 and later the bottles were rinsed thoroughly with distilled de-ionized water at least three times before sampling was done. Samples were acidified with 10% HNO 3 , were placed in an ice bath and were brought to the laboratory. The samples were filtered through a 0.45 µm micro-pore membrane filter and were kept at freeze to avoid further contamination until analysis. In this study
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