Mercury and methylmercury distribution in the intertidal surface sediment of a heavily anthrophogenically impacted saltwater-mangrove-sediment interplay zone

Hazzeman Haris, Ahmad Zaharin Aris, Mazlin Mokhtar

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Total mercury (THg) and methylmercury (MeHg) concentrations were determined from sediment samples collected from thirty sampling stations in Port Klang, Malaysia. Three stations had THg concentrations exceeding the threshold effect level of the Florida Department of Environmental Protection and the Canadian interim sediment quality guidelines. THg and MeHg concentrations were found to be concentrated in the Lumut Strait where inputs from the two most urbanized rivers in the state converged (i.e. Klang River and Langat River). This suggests that Hg in the study area likely originated from the catchments of these rivers. MeHg made up 0.06–94.96% of the sediment's THg. There is significant positive correlation (p < 0.01) between THg and MeHg concentrations. Significant positive correlation (p < 0.05) was also observed between fine sediment particles (i.e. clay and silt) with MeHg concentrations. Sediment particle size, however, was not found to have any influence on THg concentrations in the sediment in the study area.

Original languageEnglish
Pages (from-to)323-333
Number of pages11
JournalChemosphere
Volume166
DOIs
Publication statusPublished - 1 Jan 2017

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methylmercury
Mercury
Rivers
mangrove
Sediments
sediment
river
Malaysia
Conservation of Natural Resources
Particle Size
Silt
Guidelines
Environmental protection
Catchments
distribution
mercury
strait
silt
environmental protection
Clay

Keywords

  • Coastal mangrove
  • Intertidal surface sediment
  • Mercury speciation
  • Methylmercury
  • Pollution indices
  • Port

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

Cite this

Mercury and methylmercury distribution in the intertidal surface sediment of a heavily anthrophogenically impacted saltwater-mangrove-sediment interplay zone. / Haris, Hazzeman; Aris, Ahmad Zaharin; Mokhtar, Mazlin.

In: Chemosphere, Vol. 166, 01.01.2017, p. 323-333.

Research output: Contribution to journalArticle

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