DOI: 10.1016/j.atmosenv.2014.08.081
Scopus记录号: 2-s2.0-84908015221
论文题名: Seasonal and spatial variation of trace elements in multi-size airborne particulate matters of Beijing, China: Mass concentration, enrichment characteristics, source apportionment, chemical speciation and bioavailability
作者: Gao J ; , Tian H ; , Cheng K ; , Lu L ; , Wang Y ; , Wu Y ; , Zhu C ; , Liu K ; , Zhou J ; , Liu X ; , Chen J ; , Hao J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 99 起始页码: 257
结束页码: 265
语种: 英语
英文关键词: Atmospheric aerosol
; Chemical speciation
; Enrichment factor (EF)
; Positive matrix factorization (PMF)
; Trace elements
Scopus关键词: Chemical speciation
; Trace elements
; Airborne particulate matters
; Beijing , China
; Enrichment characteristics
; Enrichment factors
; Mass concentration
; Positive Matrix Factorization
; Source apportionment
; Spatial variations
; Atmospheric aerosols
; aluminum
; antimony
; arsenic
; beryllium
; cadmium
; chromium
; cobalt
; copper
; iron
; lead
; magnesium
; manganese
; nickel
; potassium
; selenium
; sodium
; steel
; sulfur
; trace element
; zinc
; bioavailability
; concentration (composition)
; particle size
; particulate matter
; spatiotemporal analysis
; speciation (chemistry)
; trace element
; urban area
; aerosol
; air pollution
; air pollution control
; air quality
; airborne particle
; ambient air
; Article
; autumn
; bioavailability
; biomass
; chemical composition
; China
; combustion
; concentration (parameters)
; contamination
; exhaust gas
; human
; humidity
; metal industry
; particle size
; pH
; rural area
; seasonal variation
; spring
; suburban area
; summer
; traffic
; wind
; winter
; Beijing [China]
; China
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The seasonal and spatial variation characteristics of 19 elements (Al, As, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, S, Sb, Se, Zn) in TSP/PM10/PM2.5 samples were investigated, which were collected from April 2011 to January 2012 simultaneously at an urban downtown site, a traffic roadside site, a suburban site, and a rural site in Beijing. The elevated concentrations of several toxic trace elements (As, Cd, Mn, Ni, Pb, etc.) in particles revealed that the contamination of toxic elements in Beijing could not be neglected. Positive matrix factorization method (PMF) was applied for source apportionment of trace elements in PM, and three factors (crust related sources, combustion sources, and traffic and steel industrial related sources) were identified. Furthermore, the chemical speciation and bioavailability of various elements were identified by applying European Community Bureau of Reference (BCR) procedure. Our results showed that eight toxic elements (As, Cd, Cr, Cu, Ni, Pb, Sb and Zn) exhibited higher mobility in PM2.5 than in PM10. Notably, elements of As, Cd, Pb and Zn were presented with higher mobility than the other elements, and these elements were lightly to release into the environment and easily available to human body. Additionally, As, Cd, Pb and Zn also accounted for higher percentages in the bound to mobile fractions at the central urban areas of Beijing. Therefore, special concerns should be paid to these toxic trace elements which had relatively high mobility in fine particles, when planning and implementing the comprehensive air pollution mitigation policies in Beijing. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80599
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, China; Ministry of Education Key Laboratory for Earth System Modeling, Center for Earth System Science, Tsinghua University, Beijing, China; School of Environment, Tsinghua University, Beijing, China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, China
Recommended Citation:
Gao J,, Tian H,, Cheng K,et al. Seasonal and spatial variation of trace elements in multi-size airborne particulate matters of Beijing, China: Mass concentration, enrichment characteristics, source apportionment, chemical speciation and bioavailability[J]. Atmospheric Environment,2014-01-01,99