气候变化领域集成服务门户(CCPortal): Measurement report: Source and mixing state of black carbon aerosol in the North China Plain: Implications for radiative effect

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DOI	10.5194/acp-20-15427-2020
	Measurement report: Source and mixing state of black carbon aerosol in the North China Plain: Implications for radiative effect
	Wang Q.; Li L.; Zhou J.; Ye J.; Dai W.; Liu H.; Zhang Y.; Zhang R.; Tian J.; Chen Y.; Wu Y.; Ran W.; Cao J.
发表日期	2020
ISSN	1680-7316
起始页码	15427
结束页码	15442
卷号	20 期号:23
英文摘要	Establishment of the sources and mixing state of black carbon (BC) aerosol is essential for assessing its impact on air quality and climatic effects. A winter campaign (December 2017-January 2018) was performed in the North China Plain (NCP) to evaluate the sources, coating composition, and radiative effects of BC under the background of emission reduction. Results: showed that the sources of liquid fossil fuels (i.e., traffic emissions) and solid fuels (i.e., biomass and coal burning) contributed 69 % and 31 % to the total equivalent BC (eBC) mass, respectively. These values were arrived at by using a combination of multi-wavelength optical approach with the source-based aerosol absorption Ångström exponent values. The air quality model indicated that local emissions were the dominant contributors to BC at the measurement site. However, regional emissions from NCP were a critical factor for high BC pollution. A single-particle aerosol mass spectrometer identified six classes of elemental carbon (EC)-containing particles. They included EC coated by organic carbon and sulfate (52 % of total EC-containing particles); EC coated by Na and K (24 %); EC coated by K, sulfate, and nitrate (17 %); EC associated with biomass burning (6 %); pure-EC (1 %); and others (1 %). Different BC sources exhibited distinct impacts on the EC-containing particles. A radiative transfer model showed that the amount of detected eBC can produce an atmospheric direct radiative effect of +18.0W m-2 and a heating rate of 0.5 K d-1. This study shows that reductions of solid fuel combustion-related BC may be an effective way of mitigating regional warming in the NCP. © Author(s) 2020.
语种	英语
scopus关键词	absorption; aerosol; air quality; black carbon; combustion; elemental carbon; mass spectrometry; radiative forcing; winter; China; North China Plain
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/247282
作者单位	Key Laboratory of Aerosol Chemistry and Physics, State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, China; School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States; Key Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Xianghe Observatory of Whole Atmosphere, Institute of Atmospheric Physics, Chinese Academy of Sciences, Xianghe, 065400, China; Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
推荐引用方式 GB/T 7714	Wang Q.,Li L.,Zhou J.,et al. Measurement report: Source and mixing state of black carbon aerosol in the North China Plain: Implications for radiative effect[J],2020,20(23).
APA	Wang Q..,Li L..,Zhou J..,Ye J..,Dai W..,...&Cao J..(2020).Measurement report: Source and mixing state of black carbon aerosol in the North China Plain: Implications for radiative effect.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(23).
MLA	Wang Q.,et al."Measurement report: Source and mixing state of black carbon aerosol in the North China Plain: Implications for radiative effect".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.23(2020).