Heavy metal concentrations in water and sediments in Tasik Chini, a freshwater lake, Malaysia

Mohammad Ebrahimpour, Mushrifah Idris

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

The purpose of this paper are to determine the concentration of heavy metals namely cadmium (Cd), copper (Cu) and lead (Pb) in water and sediment; and to investigate the effect of sediment pH and sediment organic matter on concentration of cadmium, copper and lead in sediment at oxidation fraction. For this purpose the concentration of heavy metals were measured in water and sediments at 15 sites from Tasik Chini, Peninsular Malaysia. The sequential extraction procedure used in this study was based on defined fractions: exchangeable, acid reduction, oxidation, and residual. The concentration of heavy metals in residual fraction was higher than the other fractions. Among the non-residual fractions, the concentration of heavy metals in organic matter fraction was much higher than other fractions collected from all sampling sites. The pH of the sediment in all sites was acidic. The mean pH ranges from 4.8 to 5.5 with the higher value observed at site 15. Results of organic matter analysis showed that the percentage of organic matter present in sediment samples varies throughout the lake and all sites of sediments were relatively rich in organic matter ranging from 13.0% to 34.2%. The highest mean percentage of organic matter was measured at sampling site 15, with value of 31.78%.

Original languageEnglish
Pages (from-to)297-307
Number of pages11
JournalEnvironmental Monitoring and Assessment
Volume141
Issue number1-3
DOIs
Publication statusPublished - Jun 2008

Fingerprint

Heavy Metals
Heavy metals
Lakes
Sediments
heavy metal
Biological materials
Water
lake
organic matter
sediment
water
Cadmium
Copper
cadmium
Lead
Sampling
copper
Oxidation
sampling
oxidation

Keywords

  • Concentration
  • Heavy metals
  • Individual contamination factor
  • Sediments
  • Sequential extraction
  • Tasik Chini

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Heavy metal concentrations in water and sediments in Tasik Chini, a freshwater lake, Malaysia. / Ebrahimpour, Mohammad; Idris, Mushrifah.

In: Environmental Monitoring and Assessment, Vol. 141, No. 1-3, 06.2008, p. 297-307.

Research output: Contribution to journalArticle

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