DOI: 10.1016/j.atmosenv.2016.11.018
Scopus记录号: 2-s2.0-84997294459
论文题名: The predictable influence of soil temperature and barometric pressure changes on vapor intrusion
作者: Barnes D ; L ; , McRae M ; F
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 150 起始页码: 15
结束页码: 23
语种: 英语
英文关键词: Building ventilation
; Soil-gas advection
; Soil-gas diffusion
; Vapor pressure
Scopus关键词: Atmospheric pressure
; Barometers
; Buildings
; Flow of gases
; Gases
; Indoor air pollution
; Mercury (metal)
; Temperature
; Vapor pressure
; Volatile organic compounds
; Barometric pressure
; Building ventilations
; Environmental factors
; Indoor air concentration
; Linear relationships
; Nonaqueous phase liquids
; Short-term variations
; Soil gas
; Soils
; advection
; barometry
; building
; environmental factor
; indoor air
; pressure effect
; seasonal variation
; soil gas
; soil temperature
; vapor pressure
; ventilation
; volatile organic compound
; air conditioning
; ambient air
; aqueous solution
; Article
; barometric pressure
; climate
; gas flow
; phase transition
; predictive value
; pressure
; priority journal
; seasonal variation
; soil temperature
; trend study
; vapor
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: Intrusion of volatile organic compounds in the gas phase has impacted many buildings in many different locations. Various building and environmental factors such as buoyancy of heated air and changes in barometric pressure can influence indoor air concentrations due to vapor intrusion in these buildings resulting in seasonal and daily variability. One environmental factor that previous research has not adequately addressed is soil temperature. In this study we present two northern region study sites where the seasonal trends in indoor air VOC concentrations positively correlate with soil temperature, and short-term (days) variations are associated with barometric pressure changes. We present simple and multivariate linear relationships of indoor air concentrations as a function of soil temperature and barometric pressure. Results from this study show that small changes in soil temperature can result in relatively large changes in indoor air VOC concentrations where the gas phase VOCs are sourced from non-aqueous phase liquids contained in the soil. We use the results from this study to show that a five degree Celsius increase in soil temperature, a variation in soil temperature that is possible in many climatic regions, results in a two-fold increase in indoor air VOC concentrations. Additionally, analysis provides insight into how building ventilation, diffusion, and the relative rate of soil-gas flow across the slab both from the subsurface into the building and from the building into the subsurface impact short term variations in concentrations. With these results we are able to provide monitoring recommendations for practitioners. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82256
Appears in Collections: 气候变化事实与影响
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作者单位: University of Alaska Fairbanks, PO Box 755900, Fairbanks, AK, United States
Recommended Citation:
Barnes D,L,, McRae M,et al. The predictable influence of soil temperature and barometric pressure changes on vapor intrusion[J]. Atmospheric Environment,2017-01-01,150