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Journal of Biological Sciences

Year: 2010 | Volume: 10 | Issue: 2 | Page No.: 93-100
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Authors

A.K. Ahmad

M. Shuhaimi-Othman

Keywords

Research Article

Heavy Metal Concentrations in Sediments and Fishes from Lake Chini, Pahang, Malaysia

A.K. Ahmad and M. Shuhaimi-Othman
A study was conducted to determine water quality and cadmium, copper, lead and zinc concentrations in sediments and 15 fish species from Lake Chini, Pahang. Physical parameters measured were water temperature, dissolved oxygen concentration, pH and conductivity. Sequential sediment extraction was conducted to extract metals from sediment, which involves three different of non-residual fractions. Fish tissues were extracted using wet digestion method. Metals concentration in sediment and fish were measured using atomic absorption spectrophotometer AAS 4100 Perkin Elmer. According to Malaysian National Interim Water Quality Standards (INWQS), Lake Chini was classified between moderate to good quality. Lake Chini was found to have low metal concentrations in sediments and fish, which indicates no significant anthropogenic metals input to the lake. One-way ANOVA test indicated that all metal concentrations were significantly different (p<0.05) between fish species, but not between feeding behavior. Heavy metal concentrations in fish tissues were found lower than the maximum allowable limit suggested by the Malaysian Food Act, which ascertain that the fish is safe to be eaten.
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