DOI: 10.1016/j.atmosenv.2015.03.036
Scopus记录号: 2-s2.0-84951570096
论文题名: An ozone episode over the Pearl River Delta in October 2008
作者: Shen J ; , Zhang Y ; , Wang X ; , Li J ; , Chen H ; , Liu R ; , Zhong L ; , Jiang M ; , Yue D ; , Chen D ; , Lv W
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 122 起始页码: 852
结束页码: 863
语种: 英语
英文关键词: Ozone episode
; Ozone sensitivity
; Ozone source apportionment
; Pearl River Delta
; Process analysis
Scopus关键词: Atmospheric pressure
; Gems
; Ozone
; Pollution
; River pollution
; Rivers
; Sensitivity analysis
; Ozone episodes
; Ozone sensitivity
; Pearl River delta
; Process analysis
; Source apportionment
; Air pollution
; ozone
; atmospheric pollution
; cold air
; concentration (composition)
; ozone
; pollutant source
; pollutant transport
; sensitivity analysis
; wind direction
; air pollution
; air quality
; Article
; atmospheric pressure
; autumn
; chemical reaction
; China
; cold air
; priority journal
; sensitivity analysis
; China
; Foshan
; Guangdong
; Guangzhou
; Zhujiang Delta
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: The north and east Pearl River Delta (PRD) is usually a clean, upwind area in autumn. Serious ozone pollution there in mid-late October 2008 was first discovered and then analyzed. Trajectory analysis, process analysis, ozone source apportionment technology, and sensitivity analysis were used to study this episode. Under the influence of a weak south wind, the precursors emitted in Guangzhou and Foshan were transported to the north and northeast PRD and formed ozone there, which resulted in high ozone concentration (>100 ppb). As the wind direction later transited to northerly, the precursors in the northeast PRD that originated from the central and west PRD were transported to the south, and caused severe ozone pollution in the southeast PRD. The ozone contributed by chemical processes reached >20 ppb/h in Jinguowan. More than 40 ppb ozone was contributed by the precursor emission in the central and west PRD during the episode. The ozone concentration was highly sensitive to the precursor emission in the PRD region in the high-ozone situations. This episode showed the complexity of regional pollution in the PRD. When the PRD is controlled by a low air pressure system and then cold air moves from northern China to the south, the risk of ozone pollution in the north and southeast PRD increases. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81416
Appears in Collections: 气候变化事实与影响
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作者单位: Guangdong Environmental Monitoring Center, State Environmental Protection Key Laboratory of Regional Air Quality Monitoring, Guangzhou, China; College of Environmental Sciences and Engineering, Peking University, Beijing, China; Department of Radiation Safety, China Institute of Atomic Energy, Beijing, China
Recommended Citation:
Shen J,, Zhang Y,, Wang X,et al. An ozone episode over the Pearl River Delta in October 2008[J]. Atmospheric Environment,2015-01-01,122