Mercury in Malaysian corals: Historical recorders for marine environmental management

Mazlin Mokhtar, A. B. Awaluddin, A. K. Wood, C. P. Sim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The concentration of total mercury (Hg) in skeletons of the coral species Porites lutea, sediment and seawater samples taken from various locations in waters off Kedah, Johor and Labuan were determined in this study. Samples were taken from marine waters around Pulau Bidan (Kedah), Pulau Lima (Johor) and Pulau Burung (Labuan). The determination of total mercury was carried out by using two methods, namely, cold vapour atomic absorption spectrophotometry (CVAAS) and neutron activation analysis (NAA). Results of this study show that the concentration of total mercury is highest in sediment samples, followed by coral and seawater, samples. ANOVA did not indicate significant difference (P>0.05) between results from CVAAS and NAA. There were significant differences (P<0.05) between mercury levels in coral growth bands taken from the waters off Johor and Labuan. Statistical analyses showed positive linear correlation between mercury concentrations in coral skeletons and sediments from Johor waters. The mercury levels in coral and sediment samples from Kedah were the highest among the three locations under study due to higher anthropogenic activities and its proximity to several ports.

Original languageEnglish
Pages (from-to)1053-1058
Number of pages6
JournalFresenius Environmental Bulletin
Volume11
Issue number12 A
Publication statusPublished - 1 Dec 2002

Fingerprint

Environmental management
Mercury
environmental management
coral
Sediments
Neutron activation analysis
Spectrophotometry
Seawater
Water
Vapors
neutron activation analysis
spectrophotometry
skeleton
sediment
Analysis of variance (ANOVA)
seawater
water
mercury
human activity

Keywords

  • Coral
  • Malaysia
  • Mercury
  • Sediment
  • Water

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Mercury in Malaysian corals : Historical recorders for marine environmental management. / Mokhtar, Mazlin; Awaluddin, A. B.; Wood, A. K.; Sim, C. P.

In: Fresenius Environmental Bulletin, Vol. 11, No. 12 A, 01.12.2002, p. 1053-1058.

Research output: Contribution to journalArticle

Mokhtar, Mazlin ; Awaluddin, A. B. ; Wood, A. K. ; Sim, C. P. / Mercury in Malaysian corals : Historical recorders for marine environmental management. In: Fresenius Environmental Bulletin. 2002 ; Vol. 11, No. 12 A. pp. 1053-1058.
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