Nabeel Abdullah Alrabie, Ferdaus Mohamat-Yusuff, Rohasliney Hashim, Zufarzaana Zulkeflee, Mohammad Noor Azmai Amal, Aziz Arshad, Syaizwan Zahmir Zulkifli, Anugrah Ricky Wijaya, Najat Masood, Muhamad Shirwan Abdullah Sani
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 and208Pb/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. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang, 43400, Malaysia; International Institute of Aquaculture & Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, Jalan Kemang 6, Batu 7, Teluk Kemang, Port Dickson, 71050, Malaysia; Department of Biology, Faculty of Science, Universiti Putra Malaysia, Serdang, 43400, Malaysia; Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, 43400, Malaysia; Product Stewardship & Toxicology, Group Health, Safety Security and Environment, Petroliam Nasional Berhad (PETRONAS), Kuala Lumpur, 50088, Malaysia; Department of Chemistry, Universitas Negeri Malang (UM), Jl. Semarang 5, Malang, 65145, Indonesia; Department of Chemistry, Faculty of Science, University of Ha’il, Ha’il, 55471, Saudi Arabia; International Institute for Halal Research and Training, International Islamic University Malaysia, Jalan Gombak, Kuala Lumpur, 53100, Malaysia
