气候变化领域集成服务门户(CCPortal): Tracking ammonia morning peak, sources and transport with 1 Hz measurements at a rural site in North China Plain

CCPortal

DOI	10.1016/j.atmosenv.2020.117630
	Tracking ammonia morning peak, sources and transport with 1 Hz measurements at a rural site in North China Plain
	He Y.; Pan Y.; Zhang G.; Ji D.; Tian S.; Xu X.; Zhang R.; Wang Y.
发表日期	2020
ISSN	1352-2310
卷号	235
英文摘要	The North China Plain has been identified as a global hotspot for ammonia (NH3). To date, NH3 surface observations in the region have mostly been obtained by passive samplers with a time resolution of weeks (e.g., AMoN-China), and few studies have been performed with fast-response instruments. Thus, the detailed temporal variations of NH3 concentrations are still unclear in the region. From December 2017 to February 2018, NH3 concentrations were observed at a high-temporal resolution of 1 Hz by using the Picarro online instrument at the Xianghe, a rural site between the megacities of Beijing and Tianjin. During the campaign, the hourly NH3 concentrations ranged from 0.8 to 483.3 ppb, with an overall mean of 16.7 ± 19.7 ppb, which was considerably higher than those reported at other sites. In addition, the diurnal profile showed a notable increase of NH3 concentrations in the morning, which was likely due to dew evaporation. While the monthly difference of NH3 concentrations in winter was most likely driven by temperature, the elevated biomass burning may have also a considerable effect. The presented observations could provide insights into the dynamic characteristics of NH3 during haze pollution and provide a unique dataset to validate atmospheric chemistry and transport models at high-temporal resolutions. © 2020 Elsevier Ltd
关键词	Ammonia Biomass burning Haze pollution High-temporal resolution Morning peak
语种	英语
scopus关键词	Atmospheric chemistry; Atmospheric movements; Chemistry and transport models; Dynamic characteristics; High temporal resolution; North China Plain; On-line instruments; Passive samplers; Surface observation; Temporal variation; Ammonia; ammonia; ammonia; biomass burning; concentration (composition); measurement method; megacity; pollutant source; pollutant transport; rural area; tracking; air pollution; air temperature; Article; biomass; China; circadian rhythm; city; combustion; evaporation; haze; pollution monitoring; pollution transport; priority journal; rural area; surface property; winter; Beijing [China]; China; Hebei; North China Plain; Tianjin; Xianghe
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/249084
作者单位	State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
推荐引用方式 GB/T 7714	He Y.,Pan Y.,Zhang G.,et al. Tracking ammonia morning peak, sources and transport with 1 Hz measurements at a rural site in North China Plain[J],2020,235.
APA	He Y..,Pan Y..,Zhang G..,Ji D..,Tian S..,...&Wang Y..(2020).Tracking ammonia morning peak, sources and transport with 1 Hz measurements at a rural site in North China Plain.ATMOSPHERIC ENVIRONMENT,235.
MLA	He Y.,et al."Tracking ammonia morning peak, sources and transport with 1 Hz measurements at a rural site in North China Plain".ATMOSPHERIC ENVIRONMENT 235(2020).