Poster De Conférence Année : 2023

Airborne measurement of aerosol physicochemical properties along the Paris urban plume

Chenjie Yu
Peter Decarlo
Eleonora Aruffo
  • Fonction : Auteur
Piero Di Carlo
Edouard Pangui
  • Fonction : Auteur
Mathieu Cazaunau
Kevin Tu
  • Fonction : Auteur
Astrid Bauville
  • Fonction : Auteur
Grégoire Cayez
  • Fonction : Auteur
Noel Grand
  • Fonction : Auteur
Pascal Zapf
  • Fonction : Auteur
Vincent Michoud
  • Fonction : Auteur
Christopher Cantrell

Résumé

Atmospheric aerosols make significant contributions to several atmospheric chemical and physical processes. Aerosols from anthropogenic emissions have negative impact on air quality and human health. In recent years, significant progress has been made in understanding the anthropogenic pollutants. However, it is still not clear how mixtures of anthropogenic and biogenic emissions impact the regional climate and human health. To better understand aerosol physicochemical properties within the Paris urban plume when mixed with biogenic emissions, a comprehensive airborne measurement platform was deployed in the Île-de-France region in summer 2022 as part of the ACROSS (Atmospheric ChemistRy Of the Suburban foreSt) campaign. In this study, the vertical and spatial distributions of aerosol chemical composition, size distributions, and optical properties during urban plume aging are characterized based on couples of in-situ measurement techniques like aerosol mass spectrometer (c-ToF-AMS), Ultra-High Sensitivity Aerosol Spectrometer (UHSAS) and AVIRAD staged onboard the Safire ATR 42 research aircraft. Gas phase components are also detailed characterized by Proton-transfer-reaction mass spectrometry (PTR-ToF-MS) to act as tracers of anthropogenic and biogenic emissions. Based on gas and particulate phase organic information provided by laser-induced fluorescence technique (TDLIF), the production rate of particulate organic nitrate (pON) can also be estimated. These detailed airborne measurements of aerosol properties provide data that can contribute to modelling studies of aerosol characteristics.
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Dates et versions

hal-04278474 , version 1 (10-11-2023)

Identifiants

Citer

Chenjie Yu, Paola Formenti, Peter Decarlo, Eleonora Aruffo, Piero Di Carlo, et al.. Airborne measurement of aerosol physicochemical properties along the Paris urban plume. EGU European General Assembly, Apr 2023, Vienne (AUT), Austria. 2023, ⟨10.5194/egusphere-egu23-763⟩. ⟨hal-04278474⟩

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