气候变化领域集成服务门户(CCPortal): Molecular characterization of biomass burning tracer compounds in fine particles in Nanjing, China

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DOI	10.1016/j.atmosenv.2020.117837
	Molecular characterization of biomass burning tracer compounds in fine particles in Nanjing, China
	Li W.; Wang J.; Qi L.; Yu W.; Nie D.; Shi S.; Gu C.; Ge X.; Chen M.
发表日期	2020
ISSN	1352-2310
卷号	240
英文摘要	In this work, a sensitive method based on the High Performance Liquid Chromatography-Electrospray Ionization-Mass spectrometry/Mass spectrometry (HPLC-ESI-MS/MS) technique was established and validated, and successfully applied to quantify biomass burning tracer species (in total 20 compounds) in fine aerosol particles (PM2.5) collected during the full year of 2016 in Nanjing, China. The annual levoglucosan concentration was determined to be 328.3 ng m−3, at a similar level as it in other Chinese cities; the concentration peaked in fall, indicating influences of crop/straw burning during harvest periods. Concentrations of other species were a few orders of magnitude lower than that of levoglucosan, with salicylic acid (1.53 ng m−3), cis-pinonic acid (0.60 ng m−3) and vanillic acid (0.51 ng m−3) as the three most abundant ones. Total concentrations of tracers indicative of softwood, hardwood and grass burning were about equal. Seasonal concentrations of these tracers were generally similar, and all peaked in winter, different from that of levolglucosan. Further positive matrix factorization (PMF) identified four types of biomass (cellulose, harwood lignin, softwood lignin and grass). Celluose was dominated in fall, while softwood and hardwood were both dominated in winter, and seasonal contributions (except summer) were relatively even to grass. On an annual basis, softwood, hardwood and grass contributions were almost on par to the selected tracers, in agreement with the results based only on concentrations, but seasonally, grass was the major one in spring, summer and fall, but much less important in winter. © 2020 Elsevier Ltd
关键词	Biomass burning Grass Hardwood Softwood Source apportionment
语种	英语
scopus关键词	Biomass; Electrodeposition; Electrospray ionization; Factorization; Hardwoods; High performance liquid chromatography; Lignin; Mass spectrometry; Salicylic acid; Softwoods; Biomass-burning; Cis-pinonic acid; Molecular characterization; Nanjing , China; Orders of magnitude; Positive Matrix Factorization; Sensitive method; Tracer compounds; Tracers; cellulose; levoglucosan; lignin; salicylic acid; vanillic acid; aerosol; biomass burning; concentration (composition); grass; lignin; magnitude; salicylic acid; tracer; aerosol; air quality; Article; autumn; biomass; China; Chinese; concentration (parameter); crop; electrospray mass spectrometry; grass; harvest period; high performance liquid chromatography; limit of detection; limit of quantitation; particulate matter; prescribed burning; priority journal; seasonal variation; spring; summer; time of death; time series analysis; winter; Biomass; Electroplating; Hardwoods; Salicylic Acid; Softwoods; Nanjing [Jiangsu]
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/248981
作者单位	Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Harvard-NUIST Joint Laboratory for Air Quality and Climate, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), Villigen5232, Switzerland; School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China; School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Reading Academy, Nanjing University of Information Science and Technology, Nanjing, 210044, China
推荐引用方式 GB/T 7714	Li W.,Wang J.,Qi L.,et al. Molecular characterization of biomass burning tracer compounds in fine particles in Nanjing, China[J],2020,240.
APA	Li W..,Wang J..,Qi L..,Yu W..,Nie D..,...&Chen M..(2020).Molecular characterization of biomass burning tracer compounds in fine particles in Nanjing, China.ATMOSPHERIC ENVIRONMENT,240.
MLA	Li W.,et al."Molecular characterization of biomass burning tracer compounds in fine particles in Nanjing, China".ATMOSPHERIC ENVIRONMENT 240(2020).