气候变化领域集成服务门户(CCPortal): Influence of ship direct emission on HONO sources in channel environment

CCPortal

DOI	10.1016/j.atmosenv.2020.117819
	Influence of ship direct emission on HONO sources in channel environment
	Guo Y.; Wang S.; Gao S.; Zhang R.; Zhu J.; Zhou B.
发表日期	2020
ISSN	1352-2310
卷号	242
英文摘要	Nitrous acid (HONO) is the primary source of hydroxyl radical (OH) during daytime and significantly contribute to the formation of secondary organic compounds (SOA) and atmospheric oxidizing capacity. One month simultaneous observations at ship channel site (SCS) and background site (BGS) in Shanghai, China were conducted to aim at estimating the HONO concentration from ship direct emission and analyzing the nocturnal budget of HONO during non-clean period in SCS. The HONO average concentrations at both BGS and SCS during non-clean period were 0.37 ± 0.42 ppbv and 0.91 ± 0.78 ppbv, respectively. The diurnal variation of HONO from ship direct emission presented a double-peak trend with a maximum value 0.38 ± 0.18 ppbv at 07:00 in the morning. The proportion of HONO emission from ships was in a range of 43%~74% in the daytime, while, the proportions were 42%~63% and 14%~28% at night in clean and non-clean periods, respectively. HONO nocturnal conversion frequencies from NO2 were 0.29%/h at both sites in non-clean period, during which the deposition velocities of HONO were 0.21–1.4 cm/s and 0.34–1.4 cm/s at BGS and SCS, respectively. © 2020 Elsevier Ltd
关键词	Atmospheric chemistry nitrous acid Ship channel environment Ship emission
语种	英语
scopus关键词	Budget control; Ships; Average concentration; Conversion frequencies; Deposition velocities; Diurnal variation; Hydroxyl radicals; Oxidizing capacity; Shanghai , China; Simultaneous observation; Inorganic acids; nitrous acid; air quality; atmospheric pollution; concentration (composition); deposition velocity; diurnal variation; hydroxyl radical; nitrous acid; organic compound; pollutant source; shipping; traffic emission; air pollution; Article; atmospheric deposition; China; circadian rhythm; concentration (parameter); environment; meteorology; priority journal; ship; temperature; time series analysis; China; Shanghai
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248932
作者单位	Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China; Institute of Eco-Chongming (IEC), No.20 Cuiniao Road, Shanghai, 202162, China; Shanghai Environment Monitoring Center, Shanghai, China; Institute of Atmospheric Sciences, Fudan University, Shanghai, 200433, China
推荐引用方式 GB/T 7714	Guo Y.,Wang S.,Gao S.,et al. Influence of ship direct emission on HONO sources in channel environment[J],2020,242.
APA	Guo Y.,Wang S.,Gao S.,Zhang R.,Zhu J.,&Zhou B..(2020).Influence of ship direct emission on HONO sources in channel environment.ATMOSPHERIC ENVIRONMENT,242.
MLA	Guo Y.,et al."Influence of ship direct emission on HONO sources in channel environment".ATMOSPHERIC ENVIRONMENT 242(2020).