DOI: 10.1016/j.atmosenv.2015.02.058
Scopus记录号: 2-s2.0-84924107287
论文题名: Multi-wavelength optical determination of black and brown carbon in atmospheric aerosols
作者: Massabò D ; , Caponi L ; , Bernardoni V ; , Bove M ; C ; , Brotto P ; , Calzolai G ; , Cassola F ; , Chiari M ; , Fedi M ; E ; , Fermo P ; , Giannoni M ; , Lucarelli F ; , Nava S ; , Piazzalunga A ; , Valli G ; , Vecchi R ; , Prati P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 108 起始页码: 1
结束页码: 12
语种: 英语
英文关键词: Carbonaceous aerosol
; Light absorption
; Source apportionment
Scopus关键词: Aerosols
; Atmospheric thermodynamics
; Carbon
; Electromagnetic wave absorption
; Light absorption
; Particulate emissions
; Rural areas
; Urban growth
; Absorption co-efficient
; Carbonaceous aerosol
; Direct measurement
; Incomplete combustion
; Independent measurement
; Optical determination
; Relative contribution
; Source apportionment
; Atmospheric aerosols
; black carbon
; brown carbon
; carbon
; carbon 14
; fossil fuel
; levoglucosan
; unclassified drug
; absorption
; aerosol
; black carbon
; brown carbon
; burning
; fuelwood
; optical method
; seasonal variation
; wavelength
; aerosol
; analyzer
; Article
; atmosphere
; autumn
; carbon footprint
; combustion
; concentration (parameters)
; Italy
; light absorption
; multi wavelength absorbance analyzer
; optical instrumentation
; optics
; polarimetry
; priority journal
; rural area
; seashore
; seasonal variation
; summer
; winter
; Italy
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 paper, a new way to apportion the absorption coefficient (babs) of carbonaceous atmospheric aerosols starting from a multi-wavelength optical analysis is shown. This methodology can disentangle and quantify the contribution to total absorption of equivalent black carbon (EBC) emitted by wood burning (EBCWB) and fossil fuel (EBCFF) as well as brown carbon (BrC) due to incomplete combustion. The method uses the information gathered at five different wavelengths in a renewed and upgraded version of the approach usually referred to as Aethalometer model. Moreover, we present the results of an apportionment study of carbonaceous aerosol sources performed in a rural area and in a coastal city, both located in the North-West of Italy. Results obtained by the proposed approach are validated against independent measurements of levoglucosan and radiocarbon. At the rural site the EBCWB and EBCFF relative contributions are about 40% and 60% in winter and 15% and 85% in summer, respectively. At the coastal urban site, EBCWB and EBCFF are about 15% and 85% during fall. The OC contribution to the wood burning source at the rural site results approximately 50% in winter and 10% in summer and about 15% at the coastal urban site in fall. The new methodology also provides a direct measurement of the absorption Ångström exponent of BrC (αBrC) which resulted αBrC=3.95±0.20. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81850
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Dept. of Physics, University of Genoa and INFN, Via Dodecaneso 33, Genova, Italy; Dept. of Physics, Università degli Studi di Milano and INFN, Via Celoria 16, Milano, Italy; Dept. of Physics, University of Florence, Via Sansone 1, Sesto Fiorentino, FI, Italy; INFN - Section of Florence, Via Sansone 1, Sesto Fiorentino, FI, Italy; Dept. of Chemistry, Università degli Studi di Milano, Via Golgi 19, Milano, Italy; Dept. of Environmental and Territorial Sciences, Università degli Studi di Milano-Bicocca, Piazza della Scienza 1, Milan, Italy
Recommended Citation:
Massabò D,, Caponi L,, Bernardoni V,et al. Multi-wavelength optical determination of black and brown carbon in atmospheric aerosols[J]. Atmospheric Environment,2015-01-01,108