Author(s): Xin Yan Lye; Akihiko Nakayama
Linked Author(s):
Keywords: Stormwater quality Soil quality Rainfall-runoff process Heavy metals
Abstract: Apart from economic, social and technological advancements, urbanization has also resulted in drastic changes to land covers, which introduces widespread impervious surfaces, leading to excessive stormwater discharges during rainfall. Limited studies focused on assessing stormwater quality despite the risk of transported contaminants accumulated due to anthropogenic sources. Herein, stormwater and roadside soil samples were collected for analysis from a mixed-use catchment located in the town of Teluk Intan, Perak state of Malaysia. Stormwater quality assessment was determined by concentrations of heavy metal contaminants, including lead, chromium, cadmium, zinc, iron, copper and nickel. Mean concentrations of all heavy metals exceed Class V of Department of Environment (DOE) National Water Quality Standards (NWQS) for Malaysia. This may indicate a need for effective measure at critical points where stormwater quality far exceeds the threshold quality.
Year: 2025