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Spatial and temporal variation on distributions of dissolved and particulate arsenic and mercury in Sungai Kuantan, Pahang
Fikriah Faudzi1, Mohd Fuad Miskon2, Kamaruzzaman Yunus3, Mokhlesur Rahman4.
It is important to monitor the concentration of toxic metals in the Sungai Kuantan as it serves many communities in
terms of domestic, fisheries and agriculture purpose. In order to determine the distributions of dissolved and particulate
As and Hg in Sungai Kuantan and evaluate its changes temporally and spatially, water samples were collected from the
surface and bottom layers in a grid of 9 stations from estuary towards the upstream of Sungai Kuantan from May 2012
till October 2012. The dissolved metals were pre-concentrated using Chelex-100 while particulate metals were digested
using Teflon bomb and subsequently were analyzed using ICP-MS. Dissolved As ranging from 4.650 to 36.894 µg L-1
while dissolved Hg ranging from BDL to 0.011 µg L-1. Particulate As and Hg varied from 0.650 to 86.087 mg L-1 and BDL
to 5.873 mg L-1, respectively. Higher concentration of the dissolved elements were found mainly in October 2012 and
particulate elements concentration mostly higher in May 2012. The source of the studied metals in the river may be the
run-off from the effluent discharges and other natural sources. The toxic elements studied in Sungai Kuantan waters
were still below the Interim Marine Water Quality Standard (INWQS) permissible limits.
Affiliation:
- International Islamic University Malaysia, Malaysia
- International Islamic University Malaysia, Malaysia
- International Islamic University Malaysia, Malaysia
- International Islamic University Malaysia, Malaysia
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6 |
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Web of Science (SCIE - Science Citation Index Expanded) |
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Q4 (Multidisciplinary Sciences) |
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Scopus 2020 |
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CiteScore (1.4) |
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Q2 (Multidisciplinary) |
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