Show simple item record

dc.contributor.authorPrasanna, Mohan
dc.contributor.authorPraveena, S.
dc.contributor.authorChidambaram, S.
dc.contributor.authorNagarajan, Ramasamy
dc.contributor.authorAruchunan, Elayaraja
dc.identifier.citationPrasanna, M.V. and Praveena, S.M. and Chidambaram, S. and Nagarajan, R. and Aruchunan, E. 2012. Evaluation of water quality pollution indices for heavy metal contamination monitoring: A case study from Curtin Lake, Miri City, East Malaysia. Environmental Earth Sciences. 67 (7): pp. 1987-2001.

An integrated approach of pollution evaluation indices and statistical techniques was employed to assess the intensity and sources of pollution in Curtin Lake water, Miri City, East Malaysia. Fe, Pb and Se concentrations in most of the water samples exceed the maximum admissible concentration. The heavy metal evaluation index (HEI) shows strong correlations with heavy metal pollution index (HPI) and degree of contamination (Cd), and gives a better assessment of pollution levels. Samples from all the 25 locations in the lake were classified as high in Cd and low in HPI compared with the respective critical values. The modified schemes of HPI and Cd show comparable results with HEI and indicate that about 48 % of the samples with values lower than mean were classed as low contamination and the remaining samples (52 %) with values greater than the mean were classed as medium contamination. Cluster analysis, principal component analysis and pollution indices reveal that the quality of water is mainly controlled by natural/geogenic processes with minor anthropogenic input. US Salinity Laboratory plot and EC classification were also been used to assess the suitability of lake water for agricultural purpose. The current distribution level ofheavy metal in the lake water is of environmental and health concerns and needs attention.

dc.subjectprincipal component analysis
dc.subjectwater quality
dc.subjectdegree of contamination
dc.subjectheavy metal pollution index
dc.subjectCurtin Lake
dc.titleEvaluation of water quality pollution indices for heavy metal contamination monitoring: A case study from Curtin Lake, Miri City, East Malaysia
dc.typeJournal Article
dcterms.source.titleEnvironmental Earth Sciences
curtin.accessStatusFulltext not available

Files in this item


This item appears in the following Collection(s)

Show simple item record