Chlorine activation within urban or power plant plumes: Vertically resolved ClNO2 and Cl-2 measurements from a tall tower in a polluted continental setting

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dc.authorid0000-0001-9936-1145en_US
dc.authorid0000-0002-2984-6304en_US
dc.authorid0000-0002-6908-5829en_US
dc.contributor.authorRiedel, Theran P.
dc.contributor.authorWagner, Nicholas L.
dc.contributor.authorDube, William P.
dc.contributor.authorMiddlebrook, Ann M.
dc.contributor.authorYoung, Cora J.
dc.contributor.authorÖztürk, Fatma
dc.date.accessioned2021-06-23T19:34:20Z
dc.date.available2021-06-23T19:34:20Z
dc.date.issued2013
dc.departmentBAİBÜ, Mühendislik Fakültesi, Çevre Mühendisliği Bölümüen_US
dc.description.abstractNitryl chloride (ClNO2) is a chlorine atom source and reactive nitrogen reservoir formed during the night by heterogeneous reactions of dinitrogen pentoxide on chloride-containing aerosol particles. The main factors that influence ClNO2 production include nitrogen oxides, ozone, aerosol surface area, soluble chloride, and ambient relative humidity. Regions with strong anthropogenic activity therefore have large ClNO2 formation potential even inland of coastal regions due to transport or local emissions of soluble chloride. As part of the Nitrogen, Aerosol Composition, and Halogens on a Tall Tower field study, we report wintertime vertically resolved ClNO2 and molecular chlorine (Cl-2) measurements taken on a 300 m tall tower located at NOAA's Boulder Atmospheric Observatory in Weld County, CO, during February and March of 2011. Gas and particle phase measurements aboard the tower carriage allowed for a detailed description of the chemical state of the nocturnal atmosphere as a function of height. These observations show significant vertical structure in ClNO2 and Cl-2 mixing ratios that undergo dynamic changes over the course of a night. Using these measurements, we focus on two distinct combustion plume events where ClNO2 mixing ratios reached 600 and 1300 parts per trillion by volume, respectively, aloft of the nocturnal surface layer. We infer ClNO2 yields from N2O5-aerosol reactions using both observational constraints and box modeling. The derived yields in these plumes suggest efficient ClNO2 production compared to the campaign average, where in-plume yields range from 0.3 to 1; the campaign average yield in the boundary layer is 0.05 +/- 0.15, with substantial night-to-night and within night variability similar to previous measurements in this region.en_US
dc.identifier.doi10.1002/jgrd.50637
dc.identifier.endpage8715en_US
dc.identifier.issn2169-897X
dc.identifier.issn2169-8996
dc.identifier.issue15en_US
dc.identifier.scopus2-s2.0-84884161675en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage8702en_US
dc.identifier.urihttps://doi.org/10.1002/jgrd.50637
dc.identifier.urihttps://hdl.handle.net/20.500.12491/7476
dc.identifier.volume118en_US
dc.identifier.wosWOS:000324032900041en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorÖztürk, Fatma
dc.language.isoenen_US
dc.publisherAmer Geophysical Unionen_US
dc.relation.ispartofJournal Of Geophysical Research-Atmospheresen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectNACHTTen_US
dc.subjectClNO2en_US
dc.subjectNitryl Chlorideen_US
dc.subjectYieldsen_US
dc.subjectN2O5en_US
dc.subjectCl-2en_US
dc.titleChlorine activation within urban or power plant plumes: Vertically resolved ClNO2 and Cl-2 measurements from a tall tower in a polluted continental settingen_US
dc.typeArticleen_US

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