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Atmospheric Nitrous Acid Measurement in the French Landes Forest

dc.rights.licenseopenen_US
dc.contributor.authorWANG, Xinke
dc.contributor.authorLI, Dandan
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorFLAUD, Pierre Marie
dc.contributor.authorLI, Haiyan
dc.contributor.authorPERRIER, Sebastien
dc.contributor.authorVILLENAVE, Eric
dc.contributor.authorDUSANTER, Sebastien
dc.contributor.authorTOMAS, Alexandre
dc.contributor.authorPERRAUDIN, Emilie
dc.contributor.authorGEORGE, Christian
dc.contributor.authorRIVA, Matthieu
dc.date.accessioned2022-11-24T10:44:55Z
dc.date.available2022-11-24T10:44:55Z
dc.date.issued2022-01-20
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/170377
dc.description.abstractEnNitrous acid (HONO) is a major hydroxyl radical (•OH) source, which plays a central role in atmospheric chemistry. In this study, continuous measurements of HONO and other related parameters were conducted from July 5 to July 25, 2018, in the French Landes forest. The mean daytime and nighttime HONO concentrations were 60 and 139 ppt, respectively, while the mean daily •OH production rate from HONO photolysis below the forest canopy was estimated to be 7.6 × 104 molecules cm–3 s–1, much less than those from ozone (O3) photolysis in the presence of water vapor (3.1 × 105 molecules cm–3 s–1) and alkene ozonolysis (4.4 × 106 molecules cm–3 s–1). Interestingly, the HONO levels were peaking daily between 18:00 and 24:00, which cannot be explained by the known chemical formation pathways. Analysis of collocated measurements suggested that the accumulation of HONO during the evening might be explained by micrometeorological processes. Hence creation of a stable decoupled layer retaining the HONO emission from the soil was associated with the formation of a convective decoupled layer. Increasing relative humidity within this period enhanced HONO gaseous deposition leading to its fast depletion.
dc.description.sponsorshipCOntinental To coastal Ecosystems: evolution, adaptability and governanceen_US
dc.language.isoENen_US
dc.subject.enNitrous acid
dc.subject.enLandes forest
dc.subject.enAtmospheric photochemistry
dc.subject.enMicrometeorological process
dc.subject.enDecoupled layer
dc.subject.enSoil emission
dc.title.enAtmospheric Nitrous Acid Measurement in the French Landes Forest
dc.typeArticle de revueen_US
dc.identifier.doi10.1021/acsearthspacechem.1c00231en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalACS Earth and Space Chemistryen_US
bordeaux.page25-33en_US
bordeaux.volume6en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue1en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.identifierhal-03525996
hal.version1
hal.exportfalse
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=ACS%20Earth%20and%20Space%20Chemistry&rft.date=2022-01-20&rft.volume=6&rft.issue=1&rft.spage=25-33&rft.epage=25-33&rft.au=WANG,%20Xinke&LI,%20Dandan&FLAUD,%20Pierre%20Marie&LI,%20Haiyan&PERRIER,%20Sebastien&rft.genre=article


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