Trace Element Analysis by PIXE in Soil Samples of Hazaribagh Tannery Area

Author
Dr. Engr. A. K. M. Fazlul Hoque
Professor
Natural Sciences
Daffodil Internation University

Abstract

The trace elements level in 18 soil samples from Hazaribagh tannery area. Dhaka, Bangladesh, were determined using proton induced X-ray emission (PIXE) method. Cr content in the samples studied was found remarkably high, which is inherent in I ether tanning process. Cr concentrations varied from 105.7 5 to 5913.33 pg/g with a mean of 1672.23:1:45 !Jglg. Significantly increased amount of the elements K, Fe, Co. Ni, Cu, Rb and Sr was observed in the samples as well. Concentrations of K ranged from 4836.96 to 6730.38 !J.glg with a mean of 5537.50:H9 ~tg/g. Concentrations of Fe ranged from 21551.53 to 37306.17 pg/g with a mean of 29073.24131 11g/g. The mean concentrations of Co, Ni, Cu. Rb and Sr were 46.471..16, 47.19:t3, 32.7H3, 176.80H5 and 125.30UO ~tg/g, respectively. The concentrations ofTi, Mn, Zn, As, Br, Zr and Pb were in the same order as in IAEA standard soil-7 sample. But the concentrations of toxic elements As and Pb were higher than the standard concentration. The presence of the elevated amount of the hazardous heavy metals was primarily due to extremely high concentration of these elements in tannery effluent discharging to the ground without proper treatri1ent.

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