Rethinking hydrocarbons build-up on urban roads: A perspective on volatilisation under global warming scenarios

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	Rethinking hydrocarbons build-up on urban roads: A perspective on volatilisation under global warming scenarios
	Wijesiri, Buddhi ; Liu, An ; Hong, Nian ; Zhu, Panfeng ; Yang, Bo ; Zhao, Xu ; Goonetilleke, Ashantha
刊名	ENVIRONMENTAL POLLUTION
	2019-09-01
卷号	252 页码:950-959
关键词	Global warming Hydrocarbons Stormwater pollutant processes Stormwater quality Stormwater reuse Volatility
ISSN号	0269-7491
英文摘要	Stormwater is viewed as an alternative resource to mitigate water shortages. However, stormwater reuse is constrained due to the presence of many toxic pollutants such as hydrocarbons. Effective mitigation requires robust mathematical models for stormwater quality prediction based on an understanding of pollutant processes. However, the rise in global temperatures will impose changes to pollutant processes. This study has proposed a new perspective on modelling the build-up process of hydrocarbons, with a focus on volatile organic compounds (VOCs). Among organic compounds, VOCs are the most susceptible to changes as a result of global warming due to their volatility. Seven VOCs, namely, benzene, toluene, ethylbenzene, para-xylene, meta-xylene, ortho-xylene and styrene in road dust were investigated. The outcomes are expected to lay the foundation to overcoming the limitations in current modelling approaches such as not considering the influence of temperature and volatility, on the build-up process. A new conceptualisation is proposed for the classical build-up model by mathematically defining the volatility of VOCs in terms of temperature. Uncertainty in the re-conceptualised build-up model was quantified and was used to understand the build-up patterns in the future scenarios of global warming. Results indicated that for the likely scenarios, the variability in VOCs build-up gradually increases at the beginning of the dry period and then rapidly increases after around seven days, while the build-up reaches a near-constant value in a shorter dry period, limiting the variability. These initial research outcomes need to be further investigated given the expected impacts of global warming into the future. (C) 2019 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42670]
专题	生态环境研究中心_环境水质学国家重点实验室
作者单位	1.Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518060, Peoples R China 2.Queensland Univ Technol, Fac Sci & Engn, GPO Box 2434, Brisbane, Qld 4001, Australia 3.Shenzhen Key Lab Environm Chem & Ecol Remediat, Shenzhen 518060, Peoples R China
推荐引用方式 GB/T 7714	Wijesiri, Buddhi,Liu, An,Hong, Nian,et al. Rethinking hydrocarbons build-up on urban roads: A perspective on volatilisation under global warming scenarios[J]. ENVIRONMENTAL POLLUTION,2019,252:950-959.
APA	Wijesiri, Buddhi.,Liu, An.,Hong, Nian.,Zhu, Panfeng.,Yang, Bo.,...&Goonetilleke, Ashantha.(2019).Rethinking hydrocarbons build-up on urban roads: A perspective on volatilisation under global warming scenarios.ENVIRONMENTAL POLLUTION,252,950-959.
MLA	Wijesiri, Buddhi,et al."Rethinking hydrocarbons build-up on urban roads: A perspective on volatilisation under global warming scenarios".ENVIRONMENTAL POLLUTION 252(2019):950-959.