Transformation Processes of Metals in Urban Road Dust
Implications for Stormwater Reuse
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Beschreibung
This book discusses the physicochemical changes (transformations) that metals deposited on urban road surfaces undergo during dry weather periods, in order to provide insights into their potential impacts on stormwater quality. Based on extensive field experiments, and laboratory and data analyses, it examines transformation characteristics of metals with respect to the particle size of road dust, antecedent dry days and land uses. Further, it proposes a new risk-assessment methodology, improving the original human health-risk indices based on the transformation characteristics and potential bioavailability of metals in order to evaluate the risks posed by metals in stormwater. This book is of interest to researchers and decision-makers developing appropriate pollution mitigation measures to enhance the quality of stormwater, targeting the effective reuse of stormwater in urban areas.
Provides an overview of potential transformation processes of metals build-up on roads and related stormwater quality impacts Enables informed decision-making for stormwater pollution mitigation Discusses how dry weather periods influence metal transformation Describes the persistence, mobility, toxicity, and bioavailability of metals and their impact on stormwater quality Presents a novel approach to quantify risk associated with the metal content of road dust, based on their bioavailability characteristics
Autor*in
Ayomi Jayarathne
Themen in »Transformation Processes of Metals in Urban Road Dust«
Metals Transformation Stormwater Reuse Stormwater quality stormwater runoff Road dust characteristics mobility of metals bioavailability of metals Risk evaluation Urban Stormwater Pollution Mitigation water quality and water pollution