DOI: 10.1016/j.atmosenv.2014.02.016
Scopus记录号: 2-s2.0-84896694597
论文题名: Atmospheric PM and volatile organic compounds released from Mediterranean shrubland wildfires
作者: Garcia-Hurtado E ; , Pey J ; , Borrás E ; , Sánchez P ; , Vera T ; , Carratalá A ; , Alastuey A ; , Querol X ; , Vallejo V ; R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 89 起始页码: 85
结束页码: 92
语种: 英语
英文关键词: Biomass burning
; Mediterranean shrubland
; Organic compounds
; Trace elements
; VOCs
; Water soluble ions
Scopus关键词: Biomass-burning
; Emission inventories
; Mediterranean region
; Particle number concentration
; Secondary particulates
; Shrublands
; VOCs
; Water-soluble ions
; Air quality
; Carbonyl compounds
; Chromatographic analysis
; Inorganic compounds
; Organic compounds
; Particles (particulate matter)
; Trace elements
; Volatile organic compounds
; Fires
; alcohol
; alcohol derivative
; aldehyde derivative
; alkane
; alkane derivative
; alkanone
; ammonia
; barium ion
; calcium ion
; carbonyl derivative
; carboxylic acid
; chemical compound
; chloride ion
; inorganic compound
; isoprenoid
; ketone derivative
; levoglucosan
; magnesium ion
; manganese
; nitrate
; organic compound
; phenol derivative
; polycyclic aromatic hydrocarbon
; potassium ion
; sulfate
; trace element
; vanadium
; volatile organic compound
; zinc
; zirconium
; air quality
; atmospheric pollution
; biomass burning
; emission inventory
; Mediterranean environment
; particulate matter
; potassium
; resuspension
; shrubland
; smoke
; trace element
; volatile organic compound
; wildfire
; aerosol
; air pollution
; air sampling
; article
; ash
; combustion
; concentration (parameters)
; degradation
; dust
; fire
; gas
; mass fragmentography
; particle resuspension
; particle size
; particulate matter
; priority journal
; scrub
; smoke
; Mediterranean Region
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: Wildfires produce a significant release of gases and particles affecting climate and air quality. In the Mediterranean region, shrublands significantly contribute to burned areas and may show specific emission profiles. Our objective was to depict and quantify the primary-derived aerosols and precursors of secondary particulate species released during shrubland experimental fires, in which fire-line intensity values were equivalent to those of moderate shrubland wildfires, by using a number of different methodologies for the characterization of organic and inorganic compounds in both gas-phase and particulate-phase. Emissions of PM mass, particle number concentrations and organic and inorganic PMx components during flaming and smouldering phases were characterized in a field shrubland fire experiment. Our results revealed a clear prevalence of K+ and SO42- as inorganic ions released during the flaming-smouldering processes, accounting for 68-80% of the inorganic soluble fraction. During the residual-smouldering phases, in addition to K+ and SO42-, Ca2+ was found in significant amounts probably due the predominance of re-suspension processes (ashes and soil dust) over other emission sources during this stage. Concerning organic markers, the chromatograms were dominated by phenols, n-alkanals and n-alkanones, as well as by alcohol biomarkers in all the PMx fractions investigated. Levoglucosan was the most abundant degradation compound with maximum emission factors between 182 and 261mgkg-1 in PM2.5 and PM10 respectively. However, levoglucosan was also observed in significant amounts in the gas-phase. The most representative organic volatile constituents in the smoke samples were alcohols, carbonyls, acids, monocyclic and bicyclic arenes, isoprenoids and alkanes compounds. The emission factors obtained in this study may contribute to the validation and improvement of national and international emission inventories of this intricate and diffuse emission source. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80649
Appears in Collections: 气候变化事实与影响
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作者单位: Fundación Centro de Estudios Ambientales del Mediterráneo (CEAM), Parque Tecnológico, Charles Darwin, 14, 46980 Paterna, Valencia, Spain; Institute of Environmental Assessment and Water Research, Spanish Research Council (IDÆA-CSIC), Jordi Girona, 18-26, 08034 Barcelona, Spain; Universidad de Alicante, Facultad de Ciencias, Ap. 99, 03080 Alicante, Spain; Universidad de Barcelona, Departamento de Biología Vegetal, Diagonal 643, 08028 Barcelona, Spain
Recommended Citation:
Garcia-Hurtado E,, Pey J,, Borrás E,et al. Atmospheric PM and volatile organic compounds released from Mediterranean shrubland wildfires[J]. Atmospheric Environment,2014-01-01,89