Heavy metals distribution and fractionation in sediments of the Mahanadi River basin, India |
| |
| Authors: | G J Chakrapani and V Subramanian |
| |
| Institution: | (1) School of Environmental Sciences, Jawaharlal Nehru University, 110067 New Delhi, India |
| |
| Abstract: | Heavy metals distribution in core sediments, different size fractions of bed sediments (>212 urn, 90-212 jam, 63–90 urn, 53–63 urn, < 53 urn), and suspended sediments (>30 urn, 20–30  m, 10–20 urn, 2–10 urn, <2 m) have been discussed. Pb, Zn, and Cr have been accumulating in recent years in the sediments. Si, Al, Fe, Ca, and Mg dominate the bed and suspended sediment composition. Metals show increasing concentrations in finer sediments. Applying multivariate analysis to sediment composition, metals have been grouped into different factors depending upon their source of origin. Chemical fractionation studies on suspended and bed sediments show Fe, Zn, Cu, and Pb are associated with the residual fraction and Mn with the exchangeable fraction. |
| |
| Keywords: | Mahanadi River Heavy metals Fractionation |
| 本文献已被 SpringerLink 等数据库收录！ |
|
