气候变化领域集成服务门户(CCPortal): Strong marine-derived nitrous acid (HONO) production observed in the coastal atmosphere of northern China

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DOI	10.1016/j.atmosenv.2020.117948
	Strong marine-derived nitrous acid (HONO) production observed in the coastal atmosphere of northern China
	Yang J.; Shen H.; Guo M.-Z.; Zhao M.; Jiang Y.; Chen T.; Liu Y.; Li H.; Zhu Y.; Meng H.; Wang W.; Xue L.
发表日期	2021
ISSN	1352-2310
卷号	244
英文摘要	Despite its important roles in the formation of hydroxyl radical (OH) and ozone (O3), the characteristics and sources of nitrous acid (HONO) in the marine atmosphere are still poorly understood. In this study, the HONO production in maritime air masses was explored based on a field observation conducted at a coastal site in Qingdao, China in the summer of 2019. The “sea case” and the “land case” were carefully distinguished according to wind direction and backward air mass trajectory. About four times larger nocturnal NO2-to-HONO conversion rate and ~60% larger daytime Pother (production rate of HONO other than gas-phase OH + NO reaction) at noon were observed in the “sea case” compared to the “land case” (0.045 ± 0.014 h−1 versus 0.012 ± 0.007 h−1, and 1.83 ± 0.02 ppbv h−1 versus 1.14 ± 0.07 ppbv h−1, respectively). Correlation analysis implied that heterogeneous conversion of NO2 and photolysis of nitrogen-containing compounds were potentially important sources of marine atmospheric HONO in the nocturnal and daytime, respectively, though alkaline oceans are previously considered as sinks of HONO. The impacts of these marine-derived HONO on OH and O3 were comparable to or larger than that of the “land case”. These results suggest that strong marine-derived HONO production may have been overlooked previously, and more studies are required to explore its detailed formation mechanisms in the marine atmosphere. © 2020 Elsevier Ltd
关键词	Diurnal variation Marine air mass Missing HONO source Nitrous acid
语种	英语
scopus关键词	Atmospheric chemistry; Meteorology; Nitrogen oxides; Photolysis; Air mass trajectories; Conversion rates; Correlation analysis; Field observations; Formation mechanism; Hydroxyl radicals; Marine atmosphere; Production rates; Inorganic acids; hydroxyl radical; nitrous acid; ozone; air mass; air quality; coastal zone; hydrogeochemistry; hydroxide; hydroxyl radical; nitrous acid; ozone; photolysis; wind direction; alkalinity; Article; atmosphere; China; correlation analysis; photolysis; priority journal; sea; seashore; summer; wind; China; Qingdao Bay; Shandong
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/248817
作者单位	Environment Research Institute, Shandong University, Qingdao, Shandong 266237, China; College of Mechanics and Materials, Hohai University, Nanjing, Jiangsu 210098, China; Qingdao Eco-environment Monitoring Center of Shandong Province, Qingdao, Shandong 266003, China; Collaborative Innovation Center for Climate Change, Nanjing, Jiangsu 210023, China; Ji'nan Eco-Environmental Monitoring Center of Shandong Province, Ji'nan, Shandong 250000, China
推荐引用方式 GB/T 7714	Yang J.,Shen H.,Guo M.-Z.,et al. Strong marine-derived nitrous acid (HONO) production observed in the coastal atmosphere of northern China[J],2021,244.
APA	Yang J..,Shen H..,Guo M.-Z..,Zhao M..,Jiang Y..,...&Xue L..(2021).Strong marine-derived nitrous acid (HONO) production observed in the coastal atmosphere of northern China.ATMOSPHERIC ENVIRONMENT,244.
MLA	Yang J.,et al."Strong marine-derived nitrous acid (HONO) production observed in the coastal atmosphere of northern China".ATMOSPHERIC ENVIRONMENT 244(2021).