| Title: |
Molecular characterization of organic aerosols in urban and forested areas of Paris using high-resolution mass spectrometry |
| Authors: |
Pereira, Diana; Giorio, Chiara; Gratien, Aline; Zherebker, Alexander; Noyalet, Gael; Chevaillier, Servanne; Alage, Stéphanie; Almarj, Elie; Bergé, Antonin; Bertin, Thomas; Cazaunau, Mathieu; Coll, Patrice; Di Antonio, Ludovico; Harb, Sergio; Heuser, Johannes; Gaimoz, Cécile; Guillemant, Oscar; Language, Brigitte; Lauret, Olivier; Macias, Camilo; Maisonneuve, Franck; Picquet-Varrault, Bénédicte; Torres, Raquel; Triquet, Sylvain; Zapf, Pascal; Hawkins, Lelia; Pronovost, Drew; Riley, Sydney; Flaud, Pierre-Marie; Perraudin, Emilie; Pouyes, Pauline; Villenave, Eric; Albinet, Alexandre; Favez, Olivier; Aujay-Plouzeau, Robin; Michoud, Vincent; Cantrell, Christopher; Cirtog, Manuela; Di Biagio, Claudia; Doussin, Jean-François; Formenti, Paola |
| Contributors: |
Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)); Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité); Department of Chemistry Cambridge, UK; University of Cambridge Cambridge, UK (CAM); Harvey Mudd College; Environnements et Paléoenvironnements OCéaniques (EPOC); École Pratique des Hautes Études (EPHE); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS); Institut National de l'Environnement Industriel et des Risques (INERIS); This research has been supported by the French National Research Agency (ANR, grant no. ANR-17-MPGA-0002), the French national program LEFE of CNRS-INSU, the project TRAC-AOS-A within the LEFE-CHAT national program from CNRS-INSU and from ADEME, a BP Next Generation Fellowship awarded by the Yusuf Hamied Department of Chemistry at the University of Cambridge, the IDEX program of the Université Paris Cité, and the French Ministry of Environment.; ANR-17-MPGA-0002,ACROSS,Atmospheric ChemistRy Of the Suburban ForeSt(2017) |
| Source: |
ISSN: 1680-7316. |
| Publisher Information: |
CCSD; European Geosciences Union |
| Publication Year: |
2025 |
| Collection: |
Institut national des sciences de l'Univers: HAL-INSU |
| Subject Terms: |
[CHIM.OTHE]Chemical Sciences/Other; [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
| Description: |
International audience ; In order to study aerosols in environments influenced by anthropogenic and biogenic emissions to variable extents, PM1 samples were collected during summer 2022 in the greater Paris area (ACROSS campaign, Atmospheric Chemistry Of the Suburban Forest, 14 June to 25 July) at two locations that represent the urban Paris and the suburban forested areas. They were analyzed using high-resolution mass spectrometry (HRMS) together with total carbon (TC) with a thermo-optical method. Both sites are compared here to explore differences in aerosol composition from urban and forested environments. The TC analysis shows similar organic carbon (OC) concentrations at both sites (3.2 ± 1.8 µg m−3 for Paris and 2.9 ± 1.5 µg m−3 for Rambouillet) and higher elemental carbon (EC) values in the urban area. Both OC and EC concentrations did not show significant variations for daytime and nighttime conditions. This work highlights the influence of anthropogenic inputs on the chemical composition of urban and forested areas, derived from the presence of CHO and CHON compounds but also the detection of two sulfur-containing compounds (C5H12SO7 and C10H17NSO7), which could be tentatively assigned as organosulfates. A smaller number of aromatic compounds were observed for clean periods that better represent the local biogenic and anthropogenic contributions in Rambouillet and Paris, respectively. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
https://doi.org/10.25326/682; https://doi.org/10.25326/681; https://doi.org/10.25326/683; https://doi.org/10.25326/684; https://doi.org/10.25326/573 |
| DOI: |
10.5194/acp-25-4885-2025 |
| Availability: |
https://hal.science/hal-05116236; https://hal.science/hal-05116236v1/document; https://hal.science/hal-05116236v1/file/2025-061.pdf; https://doi.org/10.5194/acp-25-4885-2025 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.241E2B17 |
| Database: |
BASE |