| Literature DB >> 28681291 |
Gustavo Sousa1, Denis Kiselev1, Jérôme Kasparian2, Christian George3, José Ferreira4, Philippe Favreau4, Benoît Lazzarotto4, Jean-Pierre Wolf1.
Abstract
Real-time monitoring of individual particles from atmospheric aerosols was performed by means of a specifically developed single-particle fluorescence spectrometer (SPFS). The observed fluorescence was assigned to particles bearing polycyclic aromatic hydrocarbons (PAH). This assignment was supported by an intercomparison with classical speciation on filters followed by gas chromatography-mass spectrometry (GC-MS) analysis. As compared with daily averaged data, our time-resolved approach provided information about the physicochemical dynamics of the particles. In particular, distinctions were made between background emissions related to heating, and traffic peaks during rush hours. Also, the evolution of the peak fluorescence wavelength provided an indication of the aging of the particles during the day.Entities:
Keywords: Aerosols; Fluorescence; Identification; Monitoring; Pollution; Polycyclic aromatic hydrocarbons; Real time
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Year: 2017 PMID： 28681291 DOI： 10.1007/s11356-017-9612-2
Source DB: PubMed Journal: Environ Sci Pollut Res Int ISSN： 0944-1344 Impact factor: 4.223