DOI: 10.1016/j.atmosenv.2015.02.067
Scopus记录号: 2-s2.0-84924084695
论文题名: Contribution of low vapor pressure-volatile organic compounds (LVP-VOCs) from consumer products to ozone formation in urban atmospheres
作者: Shin H ; -M ; , McKone T ; E ; , Bennett D ; H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 108 起始页码: 98
结束页码: 106
语种: 英语
英文关键词: Consumer products
; Environmental modeling
; Low vapor pressure-volatile organic compounds
; Ozone
; Wastewater treatment plant
Scopus关键词: Air quality
; Biodegradation
; Gas chromatography
; Hydrostatic pressure
; Organic compounds
; Ozone
; Photochemical reactions
; Sewage pumping plants
; Urban planning
; Vapor pressure
; Volatile organic compounds
; Wastewater disposal
; Wastewater treatment
; Water treatment plants
; Ambient conditions
; Environmental model
; Low vapor pressures
; Mass balance model
; Octanol-water partition coefficient
; Product formulation
; Urban environment model
; Wastewater treatment plants
; Consumer products
; benzyl alcohol
; butanediol
; chemical compound
; consumer product
; diethylene glycol
; diethylene glycol monoethyl ether
; ester derivative
; ether derivative
; ethylene glycol
; ethylene glycol derivative
; glutaric acid derivative
; glycerol
; glycol
; hexylene glycol
; low vapor pressure volatile organic compound
; macrogol
; octadecanol
; octanol
; ozone
; palmitic acid isopropyl ester
; propylene glycol
; triacetin
; triethanolamine
; triethylene glycol
; unclassified drug
; volatile organic compound
; water
; air quality
; atmospheric modeling
; biodegradation
; emission
; fractionation
; numerical model
; ozone
; sludge
; solvent
; urban area
; urban pollution
; vapor pressure
; volatile organic compound
; volatilization
; water treatment
; air quality
; ambient air
; Article
; atmosphere
; biodegradation
; consumer
; controlled study
; half life time
; partition coefficient
; photochemistry
; prediction
; priority journal
; sludge
; urban area
; vapor pressure
; volatilization
; waste component removal
; waste disposal
; waste water treatment plant
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Because recent laboratory testing indicates that some low vapor pressure-volatile organic compounds (LVP-VOC) solvents readily evaporate at ambient conditions, LVP-VOCs used in some consumer product formulations may contribute to ozone formation. The goal of this study is to determine the fraction of LVP-VOCs available for ozone formation from the use of consumer products for two hypothetical emissions. This study calculates and compares the fraction of consumed product available for ozone formation as a result of (a) volatilization to air during use and (b) down-the-drain disposal. The study also investigates the impact of different modes of releases on the overall fraction available in ambient air for ozone formation. For the portion of the LVP-VOCs volatilized to air during use, we applied a multi-compartment mass-balance model to track the fate of emitted LVP-VOCs in a multimedia urban environment. For the portion of the LVP-VOCs disposed down the drain, we used a wastewater treatment plant (WWTP) fate model to predict the emission rates of LVP-VOCs to ambient air at WWTPs or at the discharge zone of the facilities and then used these results as emissions in the multimedia urban environment model. In a WWTP, the LVP-VOCs selected in this study are primarily either biodegraded or removed via sorption to sludge depending on the magnitude of the biodegradation half-life and the octanol-water partition coefficient. Less than 0.2% of the LVP-VOCs disposed down the drain are available for ozone formation. In contrast, when the LVP-VOC in a consumer product is volatilized from the surface to which it has been applied, greater than 90% is available for photochemical reactions either at the source location or in the downwind areas. Comparing results from these two modes of releases allows us to understand the importance of determining the fraction of LVP-VOCs volatilized versus disposed down the drain when the product is used by consumers. The results from this study provide important information and modeling tools to evaluate the impact of LVP-VOCs on air quality and suggest the need for future research on emissions of LVP-VOCs at the point of use. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81818
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Public Health Sciences, University of California, Davis, CA, United States; Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; School of Public Health, University of California, Berkeley, CA, United States
Recommended Citation:
Shin H,-M,, McKone T,et al. Contribution of low vapor pressure-volatile organic compounds (LVP-VOCs) from consumer products to ozone formation in urban atmospheres[J]. Atmospheric Environment,2015-01-01,108