DOI: 10.1016/j.atmosres.2018.06.004
Scopus记录号: 2-s2.0-85049481742
论文题名: Sources and physicochemical characteristics of submicron aerosols during three intensive campaigns in Granada (Spain)
作者: del Águila A. ; Sorribas M. ; Lyamani H. ; Titos G. ; Olmo F.J. ; Arruda-Moreira G. ; Yela M. ; Alados-Arboledas L.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 213 起始页码: 398
结束页码: 410
语种: 英语
英文关键词: Biomass burning
; Chemical composition
; New particle formation
; Source apportionment
; Submicron size distribution
; Traffic contribution
Scopus关键词: Atmospheric humidity
; Biomass
; Carbon
; Fossil fuels
; Particulate emissions
; Shrinkage
; Biomass-burning
; Chemical compositions
; New particle formation
; Source apportionment
; Submicron size
; Traffic contributions
; Aerosols
; aerosol
; biomass burning
; chemical composition
; nanoparticle
; physicochemical property
; seasonal variation
; size distribution
; source apportionment
; Andalucia
; Granada [Andalucia]
; Granada [Granada (PRV)]
; Iberian Peninsula
; Spain
英文摘要: Aerosol particles in the submicron range and their physicochemical characteristics were investigated for the first time in Granada, southeastern Iberian Peninsula, during three intensive campaigns. The physical and chemical characteristics were analysed during two spring campaigns and one autumn campaign. New particle formation (NPF) events were found to be more frequent in spring than in autumn. The mean duration, growth rates and maximum diameters had ranges of 5.3–13.2 h, 2.4–4.0 nm h−1 and 35–47 nm, respectively. In addition, one shrinkage event occurred and had a duration of 2.2 h and a shrinkage rate of −2.5 nm h−1. During a period of atmospheric stagnation conditions under the influence of mountain breezes, three consecutive NPF events occurred. The high frequency of the NPF events was attributed to higher temperature and radiation levels and lower relative humidity than during a previous day with similar stagnant conditions but no nucleation occurrence. According to correlation analysis, mineral components correlated with particle number in the Aitken mode, while metals and secondary inorganic aerosols correlated with particle number in the finer and larger fractions, respectively. Pollutants such as CO, NO2, NO and black carbon showed moderate and high correlations with particle number in the submicron fraction. To assess the impact of the particle number contribution according to sources, a new approach was introduced using black carbon concentrations, resulting in four major contributors: urban background, traffic, NPF and biomass burning. The proposed approach was validated by means of different models based on the aerosol spectral dependencies and chemical compositions that classify aerosol populations. Both the models and the proposed approach identified biomass burning and fossil fuel particles during the same periods, and the results showed good agreement. The proposed approach can guide future studies attempting to account for submicron particle contributions in other urban environments. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108768
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Atmospheric Research and Instrumentation Branch, National Institute for Aerospace Technology (INTA), Mazagón, Huelva, 21130, Spain; Andalusian Institute for Earth System Research, IISTA-CEAMA, University of Granada, Junta de Andalucía, Granada, 18006, Spain; Department of Applied Physics, University of Granada, Granada, 18071, Spain; Department of Geosciences, CSIC, Institute of Environmental Assessment and Water Research (IDÆA), Barcelona, Spain; Institute of Energetic and Nuclear Research (IPEN), Sâo Paulo, Brazil
Recommended Citation:
del Águila A.,Sorribas M.,Lyamani H.,et al. Sources and physicochemical characteristics of submicron aerosols during three intensive campaigns in Granada (Spain)[J]. Atmospheric Research,2018-01-01,213