DOI: 10.1016/j.atmosenv.2017.10.001
Scopus记录号: 2-s2.0-85031489965
论文题名: Analysis of PM2.5 in Córdoba, Argentina under the effects of the El Niño Southern Oscillation
作者: Lanzaco B ; L ; , Olcese L ; E ; , Querol X ; , Toselli B ; M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 171 起始页码: 49
结束页码: 58
语种: 英语
英文关键词: Argentina
; Carbonaceous particles
; Córdoba
; Fine aerosol chemical speciation
; Principal component analysis
Scopus关键词: Aerosols
; Atmospheric pressure
; Chemical analysis
; Chemical speciation
; Dust
; Nickel
; Organic carbon
; Urban growth
; Argentina
; Carbonaceous particles
; Chemical compositions
; Fine aerosols
; Industrial sources
; Meteorological condition
; Secondary inorganic aerosol
; Southern oscillation
; Principal component analysis
; ion
; organic carbon
; organic matter
; aerosol
; chemical composition
; concentration (composition)
; El Nino-Southern Oscillation
; La Nina
; particulate matter
; principal component analysis
; urban site
; aerosol
; air monitoring
; air pollution control
; Argentina
; Article
; chemical composition
; combustion
; controlled study
; dust
; El Nino
; meteorology
; priority journal
; sea surface temperature
; Argentina
; Cordoba [Argentina]
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: In this work, PM2.5 samples were collected in the winter-spring months of 2014–2016 at an urban site in Córdoba. Córdoba is the second largest city in Argentina and is an important industrial and touristic center. The collected samples were individually analyzed for chemical composition using different techniques. The soluble inorganic ions and carbonaceous particles were determined from bulk aerosol samples for the first time in the city. The mass concentrations of PM2.5, organic carbon, elemental carbon, inorganic ions and metals were determined according to the mass balance. The dominant mass components were organic matter and elemental carbon (54.8%), mineral dust (6.1%), secondary inorganic aerosols (3.0%), and salt (1.2%). A principal component analysis was applied to the samples and resulted in five major factors that explained 79% of the variance in PM2.5. These factors represented combustion, industrial sources, soil dust, secondary inorganic aerosol, and salt, and each explained between 11% and 20% of the variance. A comparison with the results from a previous campaign (2010–2011) revealed appreciable changes in the PM2.5 chemical composition. These changes were attributed to the two extreme meteorological conditions that prevailed in the region. The years 2014–2016 were largely dominated by the warm phase of the El Niño–Southern Oscillation, which leads to humid and cold weather in the Córdoba region, while the samples from 2010 to 2011 were collected during the dry and hot years resulting from the La Niña regime. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82164
Appears in Collections: 气候变化事实与影响
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作者单位: Departamento de Físico Química, INFIQC, CLCM, CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba, Argentina; Institute of Environmental Assessment and Water Research (IDAEA), CSIC, C/Jordi Girona 18-26, Barcelona, Spain
Recommended Citation:
Lanzaco B,L,, Olcese L,et al. Analysis of PM2.5 in Córdoba, Argentina under the effects of the El Niño Southern Oscillation[J]. Atmospheric Environment,2017-01-01,171