| Title: |
Volatile and intermediate volatility organic compounds in suburban Paris: variability, origin and importance for SOA formation |
| Authors: |
Ait-Helal, Warda; Borbon, Agnès; Sauvage, Stéphane; Gouw, Joost De, A.; Colomb, Aurélie; Gros, Valérie; Freutel, Friederike; Crippa, Monica; Afif, Charbel; Baltensperger, Urs; Beekmann, Matthias; Doussin, Jean-Francois; Durand-Jolibois, Régine; Fronval, Isabelle; Grand, Noël; Leonardis, Thierry; Lopez, Morgan; Michoud, Vincent; Miet, Killian; Perrier, Sébastien; Prévôt, André, S. H.; Schneider, Jodi; Siour, Guillaume; Zapf, Pascal; Locoge, Nadine |
| Contributors: |
Université Lille Nord (France); Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)); Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS); École des Mines de Douai (Mines Douai EMD); Institut Mines-Télécom Paris (IMT); Cooperative Institute for Research in Environmental Sciences (CIRES); University of Colorado Boulder -National Oceanic and Atmospheric Administration (NOAA); ESRL Chemical Sciences Division Boulder (CSD); NOAA Earth System Research Laboratory (ESRL); National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA); Laboratoire de météorologie physique (LaMP); Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS); Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE); Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)); Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA); Chimie Atmosphérique Expérimentale (CAE); Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)); Max Planck Institute for Chemistry (MPIC); Max-Planck-Gesellschaft; JRC Institute for Environment and Sustainability (IES); European Commission - Joint Research Centre Ispra (JRC); Laboratory of Atmospheric Chemistry Paul Scherrer Institute (LAC); Paul Scherrer Institute (PSI); ICOS-RAMCES (ICOS-RAMCES); Institut des Sciences Analytiques (ISA); Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Université de Lyon-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS); Web-Instrumented huMan-Machine Interactions, Communities and Semantics (WIMMICS); Centre Inria d'Université Côte d'Azur; Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Scalable and Pervasive softwARe and Knowledge Systems (Laboratoire I3S - SPARKS); Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis (I3S); Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA)-Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis (I3S); Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA) |
| Source: |
ISSN: 1680-7316. |
| Publisher Information: |
CCSD; European Geosciences Union |
| Publication Year: |
2014 |
| Collection: |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
| Subject Terms: |
organic compound; SOA formation; volatility; [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere |
| Description: |
International audience ; Measurements of gaseous and particulate organic carbon were performed during the MEGAPOLI experiments, in July 2009 and January–February 2010, at the SIRTA observatory in suburban Paris. Measurements comprise primary and secondary volatile organic compounds (VOCs), of both anthropogenic and biogenic origins, including C 12 –C 16 n-alkanes of intermediate volatility (IVOCs), suspected to be efficient precursors of secondary organic aerosol (SOA). The time series of gaseous carbon are generally consistent with times series of particulate organic carbon at regional scale, and are clearly affected by meteorology and air mass origin. Concentration levels of anthropogenic VOCs in urban and suburban Paris were surprisingly low (2–963 ppt) compared to other megacities worldwide and to rural continental sites. Urban enhancement ratios of anthropogenic VOC pairs agree well between the urban and suburban Paris sites, showing the regional extent of anthropogenic sources of similar composition. Contrary to other primary anthropogenic VOCs (aromatics and alkanes), IVOCs showed lower concentrations in winter (< 5 ppt) compared to summer (13– 27 ppt), which cannot be explained by the gas-particle partitioning theory. Higher concentrations of most oxygenated VOCs in winter (18–5984 ppt) suggest their dominant primary anthropogenic origin. The respective role of primary anthropogenic gaseous compounds in regional SOA formation was investigated by estimating the SOA mass concentration expected from the anthropogenic VOCs and IVOCs (I / VOCs) measured at SIRTA. From an integrated approach based on emission ratios and SOA yields, 38 % of the SOA measured at SIRTA is explained by the measured concentrations of I / VOCs, with a 2 % contribution by C 12 –C 16 n-alkane IVOCs. From the results of an alternative time-resolved approach, the average IVOC contribution to SOA formation is estimated to be 7 %, which is half of the average contribution of the traditional aromatic compounds (15 %). Both approaches, ... |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.5194/acp-14-10439-2014 |
| Availability: |
https://uca.hal.science/hal-01119963; https://uca.hal.science/hal-01119963v1/document; https://uca.hal.science/hal-01119963v1/file/acp-14-10439-2014.pdf; https://doi.org/10.5194/acp-14-10439-2014 |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.1EA0FCF1 |
| Database: |
BASE |