DOI: 10.1016/j.atmosenv.2019.117071
论文题名: Col Margherita Observatory: A background site in the Eastern Italian Alps for investigating the chemical composition of atmospheric aerosols
作者: Barbaro E. ; Morabito E. ; Gregoris E. ; Feltracco M. ; Gabrieli J. ; Vardè M. ; Cairns W.R.L. ; Dallo F. ; De Blasi F. ; Zangrando R. ; Barbante C. ; Gambaro A.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 221 语种: 英语
英文关键词: Aerosols
; Amino acids
; Atmospheric chemistry
; Atmospheric composition
; Atmospheric thermodynamics
; Carboxylic acids
; Isomers
; Monoterpenes
; Observatories
; Olefins
; Phenols
; Sugars
; Aerosol chemical composition
; Biomass-burning
; Chemical compositions
; Free amino acids
; High altitude sites
; Methane sulfonic acid
; Water soluble components
; Water soluble organic compounds
; Atmospheric aerosols
; amino acid
; arabinitol
; aspartic acid
; bromine
; calcium
; carboxylic acid
; chloride
; erythritol
; galactitol
; iodine
; levoglucosan
; magnesium
; mannitol
; mesylic acid
; organic compound
; phenol derivative
; pinene
; potassium
; ribitol
; sodium
; sorbitol
; sucrose
; xylitol
; aerosol
; aerosol composition
; altitude
; amino acid
; background level
; biomass burning
; chemical composition
; concentration (composition)
; observational method
; observatory
; organic compound
; seasonal variation
; sugar
; aerosol
; altitude
; Article
; chemical composition
; humidity
; method detection limit
; photooxidation
; precipitation
; priority journal
; spring
; summer
; wind
; wind speed
; Alps
; Italy
学科: Aerosol
; Biomass burning
; Free amino acids
; High altitude site
; Sugars
中文摘要: The chemical composition of atmospheric aerosol collected at the Col Margherita Atmospheric Observatory (46° 22ˈ 0.059ˈˈ N, 11° 47ˈ 30.911ˈˈ E, 2543 m a.s.l.) was investigated during spring and summer 2018. This is the first study of this area and should lead to a better understanding of the aerosol chemical composition in the Southern slope of the Eastern Italian Alps, with the aim of proposing this high altitude site as a background station. Aerosol samples were analyzed to determine several water soluble components (Cl−, Br−, I−, NO3−, SO42−, K+, Mg2+, Na+, NH4+, Ca2+), organic acids (methanesulfonic acid and C2–C7 carboxylic acids), monosaccharides, alcohol-sugars, levoglucosan and its isomers, sucrose, phenolic compounds, free L- and D-amino acids and photo-oxidation products of α-pinene (cis-pinonic acid and pinic acid). The majority of the mass concentration is explained by ionic species, but the other investigated compounds allow us to study other processes or identify the potential sources. Carboxylic acids and photochemical products of α-pinene were used to study photochemical or oxidative processes. Biomass burning input was evaluated using two specific classes of biomarkers: anhydrosugars and phenolic compounds, while biogenic inputs were studied using sugars and free amino acids. None of these water soluble organic compounds have been properly investigated previously in alpine sites because their concentrations in aerosol are very low. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160661
Appears in Collections: 气候变化与战略
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作者单位: CNR-Institute of Polar Sciences (ISP), Via Torino 155, Venice-Mestre30172, Italy; Ca’ Foscari University of Venice, Department of Environmental Sciences, Informatics and Statistics, Via Torino 155, Venice-Mestre, 30172, Italy; University of Ferrara, Department of Chemical and Pharmaceutical Sciences (DSCF), Via L. Borsari 46, Ferrara, I-44121, Italy
Recommended Citation:
Barbaro E.,Morabito E.,Gregoris E.,et al. Col Margherita Observatory: A background site in the Eastern Italian Alps for investigating the chemical composition of atmospheric aerosols[J]. Atmospheric Environment,2020-01-01,221