Evaluation of trace-metal enrichments from the 26 December 2004 tsunami sediments along the Southeast coast of India

被引：41

作者：

Srinivasalu, S. ^{[2
]}

Thangadurai, N. ^{[2
]}

Jonathan, M. P. ^{[1
]}

Armstrong-Altrin, J. S. ^{[1
]}

Ayyamperumal, T. ^{[3
]}

Ram-Mohan, V. ^{[3
]}

机构：

[1] Univ Autonoma Estado Hidalgo, Ctr Invest Ciencias Tierra, Pachuca 42184, Hidalgo, Mexico

[2] Anna Univ, Dept Geol, Madras 600025, Tamil Nadu, India

[3] Univ Madras, Dept Geol, Sch Earth & Atmospher Sci, Madras 600025, Tamil Nadu, India

来源：

ENVIRONMENTAL GEOLOGY | 2008年 / 53卷 / 08期

关键词：

tsunami sediments; contamination; dissolved salts in sediments; trace metals; Southeast coast of India;

D O I：

10.1007/s00254-007-0777-8

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The tsunami sediments deposited after the December 2004 tsunami were sampled immediately in the coastal environment of Tamil Nadu State on the southeast coast of India. Fifty-four sediment samples were collected and 14 representative samples were selected to identify the level of metal contamination in tsunami sediments. The results indicate that the sediments are mainly of fine to medium-grained sand and contain significantly high contents of dissolved salts in sediments (Na+, K+, Ca2+, Mg2+, Cl-) in water-soluble fraction due to seawater deposition and evaporation. Correlation of acid leachable trace metals (Cr, Cu, Ni, Co, Pb, Zn) indicate that Fe-Mn oxyhydroxides might play an important role in controlling their association between them. Enrichment of trace metals is observed in all the locations with reference to the background samples. High values of trace metals in the southern part of the study area are due to the large-scale industries along the coast, and they are probably anthropogenic in nature and of marine origin, which could cause serious environmental problems.

引用

页码：1711 / 1721

页数：11

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