HEAVY-METALS DISTRIBUTION AND FRACTIONATION IN SEDIMENTS OF THE MAHANADI RIVER BASIN, INDIA

被引：51

作者：

CHAKRAPANI, GJ

SUBRAMANIAN, V

机构：

[1] School of Environmental Sciences, Jawaharlal Nehru University, New Delhi

来源：

ENVIRONMENTAL GEOLOGY | 1993年 / 22卷 / 01期

关键词：

MAHANADI RIVER; HEAVY METALS; FRACTIONATION;

D O I：

10.1007/BF00775288

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Heavy metals distribution in core sediments, different size fractions of bed sediments (>212 mum, 90 212 mum, 63-90 mum, 53-63 mum, < 53 mum), and suspended sediments (> 30 mum, 20-30 mum, 10-20 mum, 2-10 mum, < 2 mum) 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.

引用

页码：80 / 87

页数：8

共 28 条

[1]

ALLAN RJ, 1986, SCI SERIES, V142

[2] SPECIATION AND MOBILIZATION OF ALUMINUM AND CADMIUM IN PODZOLS AND CAMBISOLS OF S SWEDEN [J].