title: Real time analysis of lead-containing atmospheric particles in Beijing during springtime by single particle aerosol mass spectrometry.
abstract: Using a single particle aerosol mass spectrometer (SPAMS), the chemical composition and size distributions of lead (Pb)-containing particles with diameter from 0.1 μm to 2.0 μm in Beijing were analyzed in the spring of 2011 during clear, hazy, and dusty days. Based on mass spectral features of particles, cluster analysis was applied to Pb-containing particles, and six major classes were acquired consisting of K-rich, carboneous, Fe-rich, dust, Pb-rich, and Cl-rich particles. Pb-containing particles accounted for 4.2-5.3%, 21.8-22.7%, and 3.2% of total particle number during clear, hazy and dusty days, respectively. K-rich particles are a major contribution to Pb-containing particles, varying from 30.8% to 82.1% of total number of Pb-containing particles, lowest during dusty days and highest during hazy days. The results reflect that the chemical composition and amount of Pb-containing particles has been affected by meteorological conditions as well as the emissions of natural and anthropogenic sources. K-rich particles and carbonaceous particles could be mainly assigned to the emissions of coal combustion. Other classes of Pb-containing particles may be associated with metallurgical processes, coal combustion, dust, and waste incineration etc. In addition, Pb-containing particles during dusty days were first time studied by SPAMS. This method could provide a powerful tool for monitoring and controlling of Pb pollution in real time.
authors.affiliation: Institute of Atmospheric Environment Safety and Pollution Control, Jinan University, Guangzhou 510632, China.
authors.forename: Li
authors.initials: L
authors.lastname: Ma
authors.affiliation: Institute of Atmospheric Environment Safety and Pollution Control, Jinan University, Guangzhou 510632, China. Electronic address: limei2007@163.com.
authors.forename: Mei
authors.initials: M
authors.lastname: Li
authors.affiliation: Institute of Atmospheric Environment Safety and Pollution Control, Jinan University, Guangzhou 510632, China.
authors.forename: Zhengxu
authors.initials: Z
authors.lastname: Huang
authors.affiliation: Institute of Atmospheric Environment Safety and Pollution Control, Jinan University, Guangzhou 510632, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Li
authors.affiliation: Institute of Atmospheric Environment Safety and Pollution Control, Jinan University, Guangzhou 510632, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Gao
authors.affiliation: Guangzhou Hexin Analytical Instrument Company Limited, Guangzhou 510530, China.
authors.forename: Huiqing
authors.initials: H
authors.lastname: Nian
authors.affiliation: Guangzhou Hexin Analytical Instrument Company Limited, Guangzhou 510530, China.
authors.forename: Lilin
authors.initials: L
authors.lastname: Zou
authors.affiliation: Guangzhou Hexin Analytical Instrument Company Limited, Guangzhou 510530, China.
authors.forename: Zhong
authors.initials: Z
authors.lastname: Fu
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Gao
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China.
authors.forename: Fahe
authors.initials: F
authors.lastname: Chai
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China. Electronic address: zhouzhen@gig.ac.cn.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Zhou
mesh_terms: D000336:Aerosols / Q000032:analysis* / Q000737:chemistry; D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry; D000068476:Beijing; D004391:Dust / Q000032:analysis*; D017745:Incineration; D007854:Lead / Q000032:analysis* / Q000737:chemistry; D013058:Mass Spectrometry / Q000379:methods; D010316:Particle Size; D012621:Seasons
chemical_list: D000336:Aerosols; D000393:Air Pollutants; D004391:Dust; D007854:Lead
keywords: Air pollution; Chemical composition; Pb-containing particle; SPAMS; Single particle; Source apportionment