Characterization of lead-containing atmospheric particles in a typical basin city of China: Seasonal variations, potential source areas, and responses to fireworks

doi:10.1016/j.scitotenv.2019.01.079

	Characterization of lead-containing atmospheric particles in a typical basin city of China: Seasonal variations, potential source areas, and responses to fireworks
	Zhang, Junke 1; Huang, Xiaojuan 2; Chen, Yang3 ; Luo, Bin 4; Luo, Jinqi 1; Zhang, Wei4 ; Rao, Zhihan 4; Yang, Fumo3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-04-15
卷号	661 页码:354-363
关键词	Pb-containing particles Seasonal variations Weighted potential source contribution function Fireworks Single particle aerosol mass spectrometer
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2019.01.079
通讯作者	Huang, Xiaojuan(xjhuang@cuit.edu.cn)
英文摘要	Lead (Pb) in individual aerosol particles was measured using a single particle aerosol mass spectrometer at an urban site in Chengdu, a typical basin city of China, for four one-month periods in 2016-2017 - one period for each season. The highest mass concentrations of particulate matter (PM) and gaseous species (CO, NO, NO2, and SO2) were observed in winter. Cluster analysis was applied to Pb-containing particles, and eight major classes were identified based on mass spectral features. The contribution of these classes to the total Pb-containing particles varied seasonally-for example, Pb-nitrate (PbNO3) particles showed a higher contribution in spring and winter (47%), while Pb-sulfate (PbSO4) particles exhibited a higher contribution in summer and autumn (14%-19%). The size range of particles also changed with seasons as a result of different sources and formation mechanisms under different climatic conditions. A weighted potential source contribution function (WPSCF) analysis suggested that the potential source areas of Pb-containing particles were mainly located to the northeast, east, southeast, and south of Chengdu, and their contribution intensity and coverage area significantly varied in the four seasons. Although almost all pollutants decreased during the Spring Festival holiday (SF) period, fireworks caused the most serious PM and SO2 pollution episodes during the whole study period. During the SF period, the contributions of industrial and traffic-related particles (Pb-organic + elemental carbon (PbOE) and PbNO3 particles) decreased, whereas those of Pb-chloride (PbCl), Pb-metal (PbM), and Pb-sulfate + nitrate (PbSN) particles increased due to fireworks. Results from this study may provide valuable information for a deeper understanding of Pb in particles and evaluation its impacts on atmospheric environment and human health. (C) 2019 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[41805095] ; key project of Sichuan Provincial Department of Science and Technology Program[2018SZ0288] ; Fundamental Research Funds for the Central Universities[2682017CX080] ; Sichuan Comprehensive Monitoring Station
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000458408200035
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/7438]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Huang, Xiaojuan
作者单位	1.Southwest Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu 611756, Sichuan, Peoples R China 2.Chengdu Univ Informat Technol, Sch Atmospher Sci, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu 610225, Sichuan, Peoples R China 3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 4.Sichuan Environm Monitoring Ctr, Chengdu 610074, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Junke,Huang, Xiaojuan,Chen, Yang,et al. Characterization of lead-containing atmospheric particles in a typical basin city of China: Seasonal variations, potential source areas, and responses to fireworks[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,661:354-363.
APA	Zhang, Junke.,Huang, Xiaojuan.,Chen, Yang.,Luo, Bin.,Luo, Jinqi.,...&Yang, Fumo.(2019).Characterization of lead-containing atmospheric particles in a typical basin city of China: Seasonal variations, potential source areas, and responses to fireworks.SCIENCE OF THE TOTAL ENVIRONMENT,661,354-363.
MLA	Zhang, Junke,et al."Characterization of lead-containing atmospheric particles in a typical basin city of China: Seasonal variations, potential source areas, and responses to fireworks".SCIENCE OF THE TOTAL ENVIRONMENT 661(2019):354-363.