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Journal of Biological Sciences
Year: 2001  |  Volume: 1  |  Issue: 12  |  Page No.: 1116 - 1119

Arsenic Status at Different Depths in Some Soils of Bangladesh

M.M. Hossain, M.A. Sattar, M.A. Hashem and M.R. Islam    

Abstract: A study was undertaken to determine the arsenic status of some selected soils in six thanas of three arsenic affected districts of Bangladesh. Eighteen soil samples taking three from each of 6 thanas representing 3 districts viz. Moulavibazar, Habiganj and Sylhet of Bangladesh were collected for the study. The soils were collected from 3 depths viz. 0-15, 15-30 and 30-45 cm from each location. The arsenic content in soils of Moulavibazar, Habiganj and Sylhet districts ranged from 1.32-31.89, 0-16.87 and 0.66-17.57 ppm, respectively. Out of 18 samples, arsenic content was noticed for 11 samples at 0-15 cm depth (1.98-25.76 ppm), 15 samples at 15-30 cm depth (3.96-30.68 ppm) and 14 samples at 30-45 cm depth (3.96-38.23 ppm). The highest arsenic content of 38.23 ppm was found at 30-45 cm depth in Sylhet district. Seven samples at 0-15 cm, 3 samples at 15-30 cm and 4 samples at 30-45 cm were free from arsenic contamination. Correlation study of arsenic contents of soils was done with some soil properties viz. sand, silt and clay contents, soil pH, EC and organic matter status. Results showed that arsenic content correlated significantly with different soil properties.

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