Seasonal variations of C-1-C-4 alkyl nitrates at a coastal site in Hong Kong: Influence of photochemical formation and oceanic emissions

doi:10.1016/j.chemosphere.2017.11.104

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	Seasonal variations of C-1-C-4 alkyl nitrates at a coastal site in Hong Kong: Influence of photochemical formation and oceanic emissions
	Cui, Long 3; Lee, Shun-cheng 3; Lai, Senchao 2; Ling, Zhenhao 6; Niu, Xiaojun 2; Gao, Yuan 3; Louie, Peter K. K.1; Song, Junwei 2; Zhang, Yingyi 2; Huang, Yu 3,4
刊名	CHEMOSPHERE
	2018-03-01
卷号	194 期号:2018 页码:275-284
关键词	Alkyl Nitrates Seasonality Photochemical Production Marine Emissions Ozone
DOI	10.1016/j.chemosphere.2017.11.104
文献子类	Article
英文摘要	Five C-1-C-4 alkyl nitrates (RONO2) were measured at a coastal site in Hong Kong in four selected months of 2011 and 2012. The total mixing ratios of C-1-C-4 RONO2 (Sigma 5RONO2) ranged from 15.4 to 143.7 pptv with an average of 65.9 +/- 33.0 pptv. C-3-C-4 RONO2 (2-butyl nitrate and 2-propyl nitrate) were the most abundant RONO2 during the entire sampling period. The mixing ratios of C-3-C-4 RONO2 were higher in winter than those in summer, while the ones of methyl nitrate (MeONO2) were higher in summer than those in winter. Source analysis suggests that C-2-C-4 RONO2 were mainly derived from photochemical formation along with biomass burning (58.3-71.6%), while ocean was a major contributor to MeONO2 (53.8%) during the whole sampling period. The photochemical evolution of C-2-C-4 RONO2 was investigated, and found to be dominantly produced by the parent hydrocarbon oxidation. The notable enrichment of MeONO2 over C-3-C-4 RONO2 was observed in a summer episode when the air masses originating from the South China Sea (SCS) and MeONO2 was dominantly derived from oceanic emissions. In order to improve the accuracy of ozone (O-3) prediction in coastal environment, the relative contribution of RONO2 from oceanic emissions versus photochemical formation and their coupling effects on O-3 production should be taken into account in future studies. (C) 2017 Elsevier Ltd. All rights reserved.
WOS关键词	VOLATILE ORGANIC-COMPOUNDS ; PEARL RIVER DELTA ; ABSORPTION CROSS-SECTIONS ; NOX-AIR PHOTOOXIDATIONS ; METHYL NITRATE ; SOUTHERN CHINA ; COMPOUNDS VOCS ; CARBONYL-COMPOUNDS ; ATMOSPHERIC FATE ; HKUST SUPERSITE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000423890700030
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5241]
专题	地球环境研究所_粉尘与环境研究室
作者单位	1.Hong Kong Environm Protect Dept, Wan Chai, Hong Kong, Peoples R China 2.South China Univ Technol, Guangdong Prov Key Lab Atmospher Environm & Pollu, Sch Environm & Energy, Guangzhou, Guangdong, Peoples R China 3.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Shaanxi, Peoples R China 5.Chinese Univ Hong Kong, Jockey Club Sch Publ Hlth & Primary Care, Sha Tin, Hong Kong, Peoples R China 6.Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Cui, Long,Lee, Shun-cheng,Lai, Senchao,et al. Seasonal variations of C-1-C-4 alkyl nitrates at a coastal site in Hong Kong: Influence of photochemical formation and oceanic emissions[J]. CHEMOSPHERE,2018,194(2018):275-284.
APA	Cui, Long.,Lee, Shun-cheng.,Lai, Senchao.,Ling, Zhenhao.,Niu, Xiaojun.,...&Yuan, Zibing.(2018).Seasonal variations of C-1-C-4 alkyl nitrates at a coastal site in Hong Kong: Influence of photochemical formation and oceanic emissions.CHEMOSPHERE,194(2018),275-284.
MLA	Cui, Long,et al."Seasonal variations of C-1-C-4 alkyl nitrates at a coastal site in Hong Kong: Influence of photochemical formation and oceanic emissions".CHEMOSPHERE 194.2018(2018):275-284.