气候变化领域集成服务门户(CCPortal): Measurement report: Chemical characteristics of PM2.5 during typical biomass burning season at an agricultural site of the North China Plain

CCPortal

DOI	10.5194/acp-21-3181-2021
	Measurement report: Chemical characteristics of PM2.5 during typical biomass burning season at an agricultural site of the North China Plain
	Liang L.; Engling G.; Liu C.; Xu W.; Liu X.; Cheng Y.; Du Z.; Zhang G.; Sun J.; Zhang X.
发表日期	2021
ISSN	1680-7316
起始页码	3181
结束页码	3192
卷号	21 期号:4
英文摘要	Biomass burning activities are ubiquitous in China, especially in northern China, where there is a large rural population and winter heating custom. Biomass burning tracers (i.e., levoglucosan, mannosan and potassium (K+)), as well as other chemical components, were quantified at a rural site (Gucheng, GC) in northern China from 15 October to 30 November, during a transition heating season, when the field burning of agricultural residue was becoming intense. The measured daily average concentrations of levoglucosan, mannosan and K+ in PM2.5 (particulate matter with aerodynamic diameters less than 2.5 μm) during this study were 0.79±0.75, 0.03±0.03 and 1.52±0.62 μgm..3, respectively. Carbonaceous components and biomass burning tracers showed higher levels during nighttime than daytime, while secondary inorganic ions were enhanced during daytime. An episode with high levels of biomass burning tracers was encountered at the end of October 2016, with high levoglucosan at 4.37 μgm-3. Based on the comparison of chemical components during different biomass burning pollution periods, it appeared that biomass combustion can obviously elevate carbonaceous component levels, whereas there was essentially no effect on secondary inorganic aerosols in the ambient air. Moreover, the levoglucosan / mannosan ratios during different biomass burning pollution periods remained at high values (in the range of 18.3-24.9); however, the levoglucosan / K+ ratio was significantly elevated during the intensive biomass burning pollution period (1.67) when air temperatures were decreasing, which was substantially higher than in other biomass burning periods (averaged at 0.47). © Author(s) 2021.
语种	英语
scopus关键词	aerosol composition; aerosol formation; air quality; air temperature; atmospheric chemistry; atmospheric pollution; biomass burning; chemical composition; tracer; China
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/247094
作者单位	State Key Laboratory of Severe Weather, Key Laboratory for Atmospheric Chemistry, Chinese Academy of Meteorological Sciences, Beijing, 100081, China; Division of Atmospheric Sciences, Desert Research Institute, Reno, NV 89512, United States; National Satellite Meteorological Center, Beijing, 100081, China; School of Environment, Harbin Institute of Technology, Harbin, 150001, China; National Research Center for Environmental Analysis and Measurement, Beijing, 100029, China; California Air Resources Board, El Monte, CA 91731, United States
推荐引用方式 GB/T 7714	Liang L.,Engling G.,Liu C.,et al. Measurement report: Chemical characteristics of PM2.5 during typical biomass burning season at an agricultural site of the North China Plain[J],2021,21(4).
APA	Liang L..,Engling G..,Liu C..,Xu W..,Liu X..,...&Zhang X..(2021).Measurement report: Chemical characteristics of PM2.5 during typical biomass burning season at an agricultural site of the North China Plain.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(4).
MLA	Liang L.,et al."Measurement report: Chemical characteristics of PM2.5 during typical biomass burning season at an agricultural site of the North China Plain".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.4(2021).