气候变化领域集成服务门户(CCPortal): Characterization of black carbon aerosol at the summit of Mount Tai (1534 m) in central east China: Temporal variation, source appointment and transport

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DOI	10.1016/j.atmosenv.2020.118152
	Characterization of black carbon aerosol at the summit of Mount Tai (1534 m) in central east China: Temporal variation, source appointment and transport
	Shen L.; Wang H.; Kong X.; Yin Y.; Chen K.; Chen J.
发表日期	2021
ISSN	1352-2310
卷号	246
英文摘要	As a crucial absorption component of aerosols, black carbon (BC) plays a key role in modifying aerosol-planetary boundary layer (PBL) meteorology and hence aggravating haze pollution. With an altitude of 1534 m, Mt. Tai is close to the top of the PBL and located within the transportation channel from the North China Plain (NCP) to the Yangtze River Delta (YRD). In this study, BC aerosols were continuously observed using a seven-channel aethalometer (AE-33) at the summit of Mt. Tai from May 11 to June 25, 2017. The temporal variation, source and transport characteristics of BC in the upper PBL of central and eastern China in summer were then discussed. The average concentrations of BC, BCliquid and BCsolid were 1722.6, 1194.6 and 545.8 ng m−3, respectively, during the observation period. Liquid fuel sources were calculated and accounted for 64.7% of the BC mass concentration. The distributions of BC were mostly centralized in concentrations less than 600 ng m−3 (accounting for 21.9% of the total BC samples) and ranged from 1400 to 2200 ng m−3 (32.5%). Meteorological elements were determined to have great impacts on the distribution of BC concentrations, which increased with the decrease in visibility and wind speed and the increase in relative humidity (RH). The diurnal variations in BC presented high values during the daytime and low values during the nighttime, with peaks at 06:00, 11:00 and 18:00. Long-range transport from the YRD regions in summer, as well as the surrounding regions, played an important role in determining the BC concentrations at Mt. Tai with concentration weighted trajectory (CWT) values exceeding 2000 ng m−3. Air masses may move northward to the NCP after passing through Mt. Tai, and they contributed more than 1800 ng m−3 to the BC in the whole NCP region. © 2020 Elsevier Ltd
关键词	BC Concentration weighted trajectory (CWT)Regional transport Source appointment
语种	英语
scopus关键词	Boundary layers; Carbon; Fog; River pollution; Wind; Average concentration; Black carbon aerosol; Long range transport; Meteorological elements; Planetary boundary layers; Surrounding regions; Transport characteristics; Transportation channels; Aerosols; black carbon; aerosol; black carbon; boundary layer; haze; source apportionment; spatiotemporal analysis; temporal variation; aerosol; Article; boundary layer; China; circadian rhythm; humidity; nonhuman; priority journal; visibility; wind speed; China; North China Plain; Shandong; Tai Shan; Yangtze River
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/248651
作者单位	Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science &Technology, Nanjing, 210044, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Ordos Meteorological Bureau of Inner Mongolia, Ordos, 017000, China
推荐引用方式 GB/T 7714	Shen L.,Wang H.,Kong X.,et al. Characterization of black carbon aerosol at the summit of Mount Tai (1534 m) in central east China: Temporal variation, source appointment and transport[J],2021,246.
APA	Shen L.,Wang H.,Kong X.,Yin Y.,Chen K.,&Chen J..(2021).Characterization of black carbon aerosol at the summit of Mount Tai (1534 m) in central east China: Temporal variation, source appointment and transport.ATMOSPHERIC ENVIRONMENT,246.
MLA	Shen L.,et al."Characterization of black carbon aerosol at the summit of Mount Tai (1534 m) in central east China: Temporal variation, source appointment and transport".ATMOSPHERIC ENVIRONMENT 246(2021).