气候变化领域集成服务门户(CCPortal): An investigation into the chemistry of HONO in the marine boundary layer at Tudor Hill Marine Atmospheric Observatory in Bermuda

CCPortal

DOI	10.5194/acp-22-6327-2022
	An investigation into the chemistry of HONO in the marine boundary layer at Tudor Hill Marine Atmospheric Observatory in Bermuda
	Zhu, Yuting; Wang, Youfeng; Zhou, Xianliang; Elshorbany, Yasin F.; Ye, Chunxiang; Hayden, Matthew; Peters, Andrew J.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	6327
结束页码	6346
卷号	22 期号:9 页码:20
英文摘要	Here we present measurement results of temporal distributions of nitrous acid (HONO) along with several chemical and meteorological parameters during the spring and the late summer of 2019 at Tudor Hill Marine Atmospheric Observatory in Bermuda. Large temporal variations in HONO concentration were controlled by several factors including local pollutant emissions, air mass interaction with the island, and long-range atmospheric transport of HONO precursors. In polluted plumes emitted from local traffic, power plant, and cruise ship emissions, HONO and nitrogen oxides (NOx) existed at substantial levels (up to 278 pptv and 48 ppbv, respectively), and NOx-related reactions played dominant roles in daytime formation of HONO. The lowest concentration of HONO was observed in marine air, with median concentrations at similar to 3 pptv around solar noon and < 1 pptv during the nighttime. Considerably higher levels of HONO were observed during the day in the low-NOx island-influenced air ([NO2] < 1 ppbv), with a median HONO concentration of similar to 17 pptv. HONO mixing ratios exhibited distinct diurnal cycles that peaked around solar noon and were lowest before sunrise, indicating the importance of photochemical processes for HONO formation. In clean marine air, NOx-related reactions contribute to similar to 21 % of the daytime HONO source, and the photolysis of particulate nitrate (pNO(3)) can account for the missing source assuming a moderate enhancement factor of 29 relative to gaseous nitric acid photolysis. In low-NOx island-influenced air, the contribution from both NOx-related reactions and pNO(3) photolysis accounts for only similar to 48 % of the daytime HONO production, and the photochemical processes on surfaces of the island, such as the photolysis of nitric acid on the forest canopy, might contribute significantly to the daytime HONO production. The concentrations of HONO, NOx and pNO(3) were lower when the site was dominated by the aged marine air in the summer and were higher when the site was dominated by North American air in the spring, reflecting the effects of long-range transport on the reactive nitrogen chemistry in background marine environments.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000796446000001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272997
作者单位	State University of New York (SUNY) System; Wadsworth Center; Peking University; State University of New York (SUNY) System; State University of New York (SUNY) Albany; State University System of Florida; University of South Florida; Bermuda Institute of Ocean Sciences
推荐引用方式 GB/T 7714	Zhu, Yuting,Wang, Youfeng,Zhou, Xianliang,et al. An investigation into the chemistry of HONO in the marine boundary layer at Tudor Hill Marine Atmospheric Observatory in Bermuda[J],2022,22(9):20.
APA	Zhu, Yuting.,Wang, Youfeng.,Zhou, Xianliang.,Elshorbany, Yasin F..,Ye, Chunxiang.,...&Peters, Andrew J..(2022).An investigation into the chemistry of HONO in the marine boundary layer at Tudor Hill Marine Atmospheric Observatory in Bermuda.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(9),20.
MLA	Zhu, Yuting,et al."An investigation into the chemistry of HONO in the marine boundary layer at Tudor Hill Marine Atmospheric Observatory in Bermuda".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.9(2022):20.