气候变化领域集成服务门户(CCPortal): On the association between characteristics of the atmospheric boundary layer and air pollution concentrations

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DOI	10.1016/j.atmosres.2019.104675
	On the association between characteristics of the atmospheric boundary layer and air pollution concentrations
	Yuval; Levi Y.; Dayan U.; Levy I.; Broday D.M.
发表日期	2020
ISSN	0169-8095
卷号	231
英文摘要	Air pollution in the lower atmosphere is a global concern. Characteristics of the planetary boundary layer (PBL) are considered important determinants of the dispersion and the concentrations of pollutants. This work explores the association between characteristics of the PBL and corresponding air pollution data, separately for different PBL states. Five years (2014–2018) of twice daily (01:30 and 13:30 local time) high resolution radiosonde data were used to estimate the convective and stable boundary layer heights (CBL and SBL, respectively), and the temperature lapse rate, in Bet Dagan, Israel. In 23% of the nights, mostly cloudy ones, no indication for an SBL was found but a clear top of a ground–based residual layer (RBL) was detected. The concentrations of NO, NO2, NOx and PM2.5 were negatively correlated with the heights of the CBL and RBL but positively correlated with the SBL height. Their association with the lapse rate was always negative, weak in daytime (CBL) but very strong during the night (SBL and RBL). The associations with the O3 concentrations were opposite in sign to those with the primary pollutants. The PBL height using the bulk Richardson number method was most strongly associated with the CBL and RBL concentrations but we found it unsuitable for estimating the height of the SBL. Our results demonstrate the importance of accounting for the different states of the PBL. In particular, they suggest that during SBL conditions, the common practice of using the PBL volume as a determinant of pollutant concentrations might not be appropriate. © 2019 Elsevier B.V.
英文关键词	Air pollution; Convective boundary layer; Residual boundary layer; Stable boundary layer; Temperature lapse rate
学科领域	Air pollution; Atmospheric temperature; Boundary layer flow; Nitrogen oxides; Bulk Richardson number; Convective boundary layers; Lapse rate; Planetary boundary layers; Pollutant concentration; Pollution concentration; Stable boundary layer; Stable boundary layer heights; Atmospheric boundary layer; air quality; atmospheric pollution; boundary layer; concentration (composition); convective boundary layer; dispersion; Richardson number; temperature profile
语种	英语
scopus关键词	Air pollution; Atmospheric temperature; Boundary layer flow; Nitrogen oxides; Bulk Richardson number; Convective boundary layers; Lapse rate; Planetary boundary layers; Pollutant concentration; Pollution concentration; Stable boundary layer; Stable boundary layer heights; Atmospheric boundary layer; air quality; atmospheric pollution; boundary layer; concentration (composition); convective boundary layer; dispersion; Richardson number; temperature profile
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120613
作者单位	Department of Civil and Environmental Engineering, Technion, Israel Institute of Technology, Haifa, 32000, Israel; Israel Meteorological Service, P.O. Box 25, Bet Dagan, 5025001, Israel; Department of Geography, The Hebrew University of Jerusalem, Jerusalem, 9190501, Israel; Air quality and climate change division, Ministry of Environmental Protection, 125 Menachem Begin road, Tel Aviv, 61071, Israel
推荐引用方式 GB/T 7714	Yuval,Levi Y.,Dayan U.,et al. On the association between characteristics of the atmospheric boundary layer and air pollution concentrations[J],2020,231.
APA	Yuval,Levi Y.,Dayan U.,Levy I.,&Broday D.M..(2020).On the association between characteristics of the atmospheric boundary layer and air pollution concentrations.Atmospheric Research,231.
MLA	Yuval,et al."On the association between characteristics of the atmospheric boundary layer and air pollution concentrations".Atmospheric Research 231(2020).