Title :

Filter-free light absorption measurement of volcanic ashes and ambient particulate matter using multi-wavelength photoacoustic spectroscopy

Author(s) :

Wang, Gaoxuan [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Kulinski, Pierre [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Hubert, Patrice [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Deguine, Alexandre [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Petitprez, Denis [Auteur]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Crumeyrolle, Suzanne [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Fertein, Eric [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Deboudt, Karine [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Flament, Pascal [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Sigrist, Markus W. [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Yi, Hongming [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Chen, Weidong [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]

Journal title :

Journal of Electromagnetic Waves and Applications

Abbreviated title :

Prog. Electromagn. Res.

Volume number :

166

Publication date :

2019-01-01

ISSN :

1559-8985

HAL domain(s) :

Physique [physics]

English abstract : [en]

Accurate measurement of atmospheric particulate matter (PM) absorption coefficient is highly required for study of earth climate change and for monitoring of air quality. In addition, multi-wavelength measurements of PM ...
Show more >Accurate measurement of atmospheric particulate matter (PM) absorption coefficient is highly required for study of earth climate change and for monitoring of air quality. In addition, multi-wavelength measurements of PM absorption can provide information on the PM chemical composition (black carbon or brown carbon). A multi-wavelengths photoacoustic (MW-PA) spectrophone operating at 444, 532 and 660 nm was developed and deployed for filter-free characterization of wavelength-dependent optical properties of PM mass absorption coefficient (MAC) and absorption Ångström coefficient (AAC). It is worth noting that to date no any AAC of volcanic ashes determined by filter-free measurement have been reported. The developed MW-PA spectrophone was deployed to an intensive field campaign measurement of environmental PM in Grenoble (France). Side-by-side inter-comparison measurements of ambient PM showed a good correlation between the developed MW-PA spectrophone and a reference instrument aethalometer (Magee scientific, AE33).Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS

Collections :

• Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518

Submission date :

2024-01-30T11:45:50Z
2024-02-26T13:58:02Z