Stormwater runoff pollutant loading distributions and their correlation with rainfall and catchment characteristics in a rapidly industrialized city

PloS One
Dongya LiYangmei Chen

Abstract

Fast urbanization and industrialization in developing countries result in significant stormwater runoff pollution, due to drastic changes in land-use, from rural to urban. A three-year study on the stormwater runoff pollutant loading distributions of industrial, parking lot and mixed commercial and residential catchments was conducted in the Tongsha reservoir watershed of Dongguan city, a typical, rapidly industrialized urban area in China. This study presents the changes in concentration during rainfall events, event mean concentrations (EMCs) and event pollution loads per unit area (EPLs). The first flush criterion, namely the mass first flush ratio (MFFn), was used to identify the first flush effects. The impacts of rainfall and catchment characterization on EMCs and pollutant loads percentage transported by the first 40% of runoff volume (FF40) were evaluated. The results indicated that the pollutant wash-off process of runoff during the rainfall events has significant temporal and spatial variations. The mean rainfall intensity (I), the impervious rate (IMR) and max 5-min intensity (Imax5) are the critical parameters of EMCs, while Imax5, antecedent dry days (ADD) and rainfall depth (RD) are the critical parameters of FF40...Continue Reading

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Citations

Jan 27, 2017·Environmental Science & Technology·Sven EggimannMax Maurer
Apr 21, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Agnieszka BrzezińskaMarek Zawilski
May 10, 2018·PloS One·Brik R Zivkovich, David C Mays
Oct 6, 2018·Environmental Science. Processes & Impacts·Xiaoshu HouZhenyao Shen
Dec 18, 2015·Water Science and Technology : a Journal of the International Association on Water Pollution Research·J Y ChoiL H Kim
Apr 13, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Zuxin XuHao Chen
Aug 11, 2020·Environmental Monitoring and Assessment·Péter BudaiAdrienne Clement
Nov 10, 2020·Environmental Science and Pollution Research International·Fangfang DingHaofeng Liu

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