气候变化领域集成服务门户(CCPortal): Biomass burning impacts on ambient aerosol at a background site in East China: Insights from a yearlong study

CCPortal

DOI	10.1016/j.atmosres.2019.104660
	Biomass burning impacts on ambient aerosol at a background site in East China: Insights from a yearlong study
	Liang L.; Engling G.; Cheng Y.; Liu X.; Du Z.; Ma Q.; Zhang X.; Sun J.; Xu W.; Liu C.; Zhang G.; Xu H.
发表日期	2020
ISSN	0169-8095
卷号	231
英文摘要	Biomass burning activities are ubiquitous in China. In order to better understand the biomass burning sources and their impacts on aerosol components in the background air of East China, biomass burning tracers, i.e., levoglucosan (LG), mannosan (MN) and non-sea-salt potassium (nss-K+) were quantified at the Lin'an site. The annual average concentrations of LG, MN and nss-K+ in PM2.5 were 0.13 ± 0.14 μg m−3, 0.009 ± 0.010 μg m−3 and 0.65 ± 0.38 μg m−3, respectively. The yearly variations of anhydrosugar tracers, i.e., LG and MN were fairly consistent, as well as nss-K+. However, due to extensive fireworks activity, nss-K+ was observed during a three-day episode from 7 to 9 February 2016 with abnormally high levels (average at 5.38 ± 3.55 μg m−3). The highest levels of biomass burning tracers were associated with the strong continental outflow from inland China in winter, while lower levels of biomass burning tracers were observed in the summer season, influenced by maritime air masses. Combined with the analysis of fire activity data, clear seasonal trends of biomass burning pollution in Lin'an are apparent, ranging from high to low in winter, spring, autumn and summer. By analyzing the LG/MN and LG/nss-K+ ratios, biomass burning aerosols in East China were identified to be predominately associated with burning of rice crop residues. Moreover, based on the relationship between biomass burning tracers and other components in aerosols, biomass burning plays an important role in regulating chemical properties of aerosols in background areas in East China, especially for carbonaceous components. © 2019 Elsevier B.V.
英文关键词	Biomass burning; Emission Sources; Levoglucosan; Mannosan; Seasonality
学科领域	Aerosols; Agricultural wastes; Biomass-burning; Emission sources; Levoglucosan; Mannosan; Seasonality; Biomass; aerosol; ambient air; annual variation; biomass burning; concentration (composition); emission control; seasonality; source apportionment; China
语种	英语
scopus关键词	Aerosols; Agricultural wastes; Biomass-burning; Emission sources; Levoglucosan; Mannosan; Seasonality; Biomass; aerosol; ambient air; annual variation; biomass burning; concentration (composition); emission control; seasonality; source apportionment; China
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120618
作者单位	State Key Laboratory of Severe Weather & Key Laboratory for Atmospheric Chemistry, Chinese Academy of Meteorological Sciences, Beijing, 100081, China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China; Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, United States; School of Environment, Harbin Institute of Technology, Harbin, 150001, China; National Satellite Meteorological Center, China Meteorological Administration, Beijing, 100081, China; National Research Center for Environmental Analysis and Measurement, Beijing, China; Lin'an Regional Atmosphere Background Station, Lin'an, China
推荐引用方式 GB/T 7714	Liang L.,Engling G.,Cheng Y.,et al. Biomass burning impacts on ambient aerosol at a background site in East China: Insights from a yearlong study[J],2020,231.
APA	Liang L..,Engling G..,Cheng Y..,Liu X..,Du Z..,...&Xu H..(2020).Biomass burning impacts on ambient aerosol at a background site in East China: Insights from a yearlong study.Atmospheric Research,231.
MLA	Liang L.,et al."Biomass burning impacts on ambient aerosol at a background site in East China: Insights from a yearlong study".Atmospheric Research 231(2020).