Preliminary evaluation of heavy metal contamination and source identification in Kuala Lumpur SMART stormwater pond sediments using Pb isotopic signature

Alrabie, Nabeel Abdullah and Mohamat-Yusuff, Ferdaus and Hashim, Rohasliney and Zulkeflee, Zufarzaana and Amal, Mohammad Noor Azmai and Arshad, Aziz and Zulkifl, Syaizwan Zahmir and Wijaya, Anugrah Ricky and Masood, Najat and Abdullah Sani, Muhamad Shirwan (2021) Preliminary evaluation of heavy metal contamination and source identification in Kuala Lumpur SMART stormwater pond sediments using Pb isotopic signature. Sustainability, 13 (16). pp. 1-16. ISSN 2071-1050

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Abstract

Uncontrolled urbanization and growing industrialization are major sources of pollutants that affect the urban stormwater quality and, therefore, the receiving aquatic environment. The concentrations of heavy metals (As, Cd, Cr, Cu, Fe, Ni, Pb, and Zn), and Pb isotope ratios in surface sediment samples obtained from SMART holding and storage ponds located in Kuala Lumpur were investigated using inductively coupled plasma-mass spectrometry (ICP-MS). The highest metal concentrations were found at the SMART holding pond (SHP), the first recipient of urban stormwater runoff from the SMART system catchment area. As, Cd, Pb, and Zn are the dominant metal contaminants in the sediments of both SMART ponds, with values exceeding the average shale values. According to contamination indices applied to evaluate the environmental risk caused by heavy metals, As had the highest values among the metals examined, denoting moderate contamination. Hence, it can frequently cause harmful effects on the sediment-living species. The Pb isotope ratios (206Pb/207Pb and 208Pb/207Pb) indicated that coal combustion was the foremost source of anthropogenic Pb in the sediments of both SMART ponds. The control of coal combustion and sites undergoing intensive human activities should be given priority in the foreseeable future.

Item Type:	Article (Journal)
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	International Institute for Halal Research and Training (INHART)
Depositing User:	Muhamad Shirwan Abdullah Sani
Date Deposited:	13 Aug 2021 09:27
Last Modified:	02 Sep 2021 11:12
URI:	http://irep.iium.edu.my/id/eprint/91471

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