DOI: 10.1016/j.atmosenv.2017.08.035
Scopus记录号: 2-s2.0-85029526646
论文题名: Influence of synoptic condition and holiday effects on VOCs and ozone production in the Yangtze River Delta region, China
作者: Xu Z ; , Huang X ; , Nie W ; , Chi X ; , Xu Z ; , Zheng L ; , Sun P ; , Ding A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 168 起始页码: 112
结束页码: 124
语种: 英语
英文关键词: Holiday effect
; Ozone formation
; Synoptic condition
; Volatile organic compounds
; Yangtze River Delta region
Scopus关键词: Chemical analysis
; Chemical reactivity
; Hydrocarbons
; Organic compounds
; Ozone
; Rivers
; Storms
; Volatile organic compounds
; Anthropogenic emissions
; Chemical mechanism
; Holiday effect
; Master chemical mechanism
; Observation-based model
; Ozone formation
; Synoptic conditions
; Yangtze river delta
; Coastal zones
; alkane derivative
; alkene derivative
; alkyne derivative
; halide
; hydrocarbon
; hydroxyl radical
; ozone
; volatile organic compound
; anthropogenic source
; anticyclone
; ozone
; synoptic meteorology
; trace gas
; volatile organic compound
; air pollutant
; Article
; chemical reaction
; China
; circadian rhythm
; leisure
; oxidation
; photochemistry
; priority journal
; river
; structure analysis
; China
; Jiangsu
; Nanjing [Jiangsu]
; Yangtze River
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: Both anthropogenic emission and synoptic conditions play important roles in ozone (O3) formation and accumulation. In order to understand the influence of synoptic condition and holiday effects on ozone production in the Yangtze River Delta region, China, concentrations of speciated volatile organic compounds (VOCs) and O3 as well as other relevant trace gases were simultaneously measured at the Station for Observing Regional Processes of the Earth System (SORPES) in Nanjing around the National Day holidays of China in 2014, which featured substantial change of emissions and dominated by typical anti-cyclones. Different groups of VOC species and their chemical reactivities were comprehensively analyzed. We observed clear diurnal variations of short alkenes during the measurement period, considerable amount of short alkenes were observed during night (more than 10 ppb) while almost no alkenes were measured during daytime, which might be attributed to different chemical processes. The obvious enhancement of the VOC tracers during the National Day holidays (Oct. 1st-Oct. 7th) indicated that the holiday effect strongly influenced the distribution of VOC profile and chemical reactivity in the atmosphere. At the same time, two meso-scale anticyclone processes were also observed during the measurement period. The synoptic condition contributed to the accumulation of VOCs and other precursors, which consequently impacted the ozone production in this region. The integrated influence of synoptic and holiday effects was also analyzed with an Observation Based Model (OBM) based on simplified MCM (Master Chemical Mechanism) chemical mechanism. The calculated relative increment reactivity (RIR) of different VOC groups revealed that during the holidays, this region was in VOC-limited regime and the variation of RIR shows a close linkage to the development and elimination of anti-cyclones, indicating an in-negligible contribution of synoptic effect toward ozone production in this region. © 2017 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82751
Appears in Collections: 气候变化事实与影响
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作者单位: Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, China; Collaborative Innovation Center of Climate ChangeJiangsu Province, China
Recommended Citation:
Xu Z,, Huang X,, Nie W,et al. Influence of synoptic condition and holiday effects on VOCs and ozone production in the Yangtze River Delta region, China[J]. Atmospheric Environment,2017-01-01,168