Seasonal variations of lead, arsenic, cadmium and aluminium contamination of groundwater in Dhemaji district, Assam, India

被引：4

作者：

Mridul Buragohain

Bhabajit Bhuyan

Hari Prasad Sarma

机构：

[1] Lakhimpur Girls’ College,Department of Chemistry

[2] North Lakhimpur College,Department of Chemistry

[3] Gauhati University,Department of Environmental Science

来源：

Environmental Monitoring and Assessment | 2010年 / 170卷

关键词：

Seasonal variations; Lead; Aluminium; Cadmium; Arsenic;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Seasonal variations in the concentrations of groundwater with respect to arsenic, lead, cadmium and aluminium has been studied in Dhemaji district of Assam, India. The water samples were collected from 20 different sites in both dry and wet seasons. The metals were analysed by using atomic absorption spectrometer, Perkin Elmer AAnalyst 200 model. The concentrations of aluminium, lead and cadmium in groundwater were found to be significantly elevated. High concentrations of all the metals were recorded in the dry season than in the wet season. Univariate statistics along with skewness, kurtosis and confidence limit have been calculated for both the seasons to test the distribution normality for each metal. Statistical analyses of the data reveal non-uniform distribution of the metals in the area. The metal contamination of groundwater in the district follows the trend Al > Pb > Cd > As in both the seasons.

引用

页码：345 / 351

页数：6

共 52 条

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