Assessment of trace metal toxicity in soils of Raniganj Coalfield, India

被引：37

作者：

Das, Supriyo Kumar ^{[1
]}

Chakrapani, Govind J. ^{[2
]}

机构：

[1] Univ Glasgow, Dept Geog & Earth Sci, Glasgow G12 8QQ, Lanark, Scotland

[2] Indian Inst Technol, Dept Earth Sci, Roorkee 247667, Uttar Pradesh, India

来源：

ENVIRONMENTAL MONITORING AND ASSESSMENT | 2011年 / 177卷 / 1-4期

关键词：

Coal mining; Trace metals; Raniganj Coalfield; Soil Water; INDUSTRIAL BELT; HEAVY-METALS; COAL; ELEMENTS; IMPACT; CONTAMINATION; CHEMISTRY; SEDIMENTS; RIVER; MINE;

D O I：

10.1007/s10661-010-1618-x

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Soil, rock and water samples were collected from India's oldest coalfield Raniganj to investigate trace metal contamination from mining activity. Our data reveal that trace metal concentration in soil samples lies above the average world soil composition; especially, Cr, Cu, Ni and Zn concentrations exceed the maximum allowable concentration proposed by the European Commission for agricultural soils. In particular, Cr, Cu and Ni exceed the ecotoxicological limit, and Ni exceeds the typical value for cultivated soils. Mineral dissolution from overburden material and high adsorption capacity of laterite soil are responsible for the elevated concentrations. This is evident from enrichment factor (E (f)), geoaccumulation index (I (geo)) and metal pollution index values. Sediment quality guideline index indicates toxicity to local biota although enrichment index suggests no threat from consuming crops cultivated in the contaminated soil.

引用

页码：63 / 71

页数：9

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