ClNO2 and nitrate formation via N2O5 uptake to particles: Derivation of N2O5 uptake coefficients from ambient datasets

Hdl Handle:
http://hdl.handle.net/10034/345822
Title:
ClNO2 and nitrate formation via N2O5 uptake to particles: Derivation of N2O5 uptake coefficients from ambient datasets
Authors:
Phillips, Gavin J. ( 0000-0003-4443-0822 ) ; Thieser, Jim; Tang, Mingjin; Sobanski, Nicolas; Fachinger, Johannes; Drewnick, Frank; Lelieveld, Jos; Crowley, John N.
Abstract:
We present estimates of the uptake coefficient of N2O5 using ambient measurements of the trace gases N2O5 and ClNO2 and particle composition and surface area at the Kleiner Feldberg observatory, near Frankfurt, SW Germany, during the PARADE campaign (summer 2011). Three methods used to extract gamma(N2O5) from the datasets were found to be in reasonable agreement, generating values between 0.001 and 0.4. Gamma (N2O5) displayed a significant dependence on relative humidity (RH), the largest values obtained, as expected, at high RH. No significant dependence of gamma(N2O5) on particle organic content or sulphate-to-organic ratio was observed. The variability in gamma(N2O5) is however large, indicating that humidity is not the sole factor determining the uptake coefficient. There is also an indication that the yield of ClNO2 with respect to N2O5 uptake is larger with lower concentrations of PM1 total organics. Our results will be compared to existing uptake coefficients from laboratory studies and those derived from field observations.
Affiliation:
Max Planck Institute for Chemistry/University of Chester ; Max Planck Institute for Chemistry ; Max Planck Institute for Chemistry ; Max Planck Institute for Chemistry ; Max Planck Institute for Chemistry ; Max Planck Institute for Chemistry ; Max Planck Institute for Chemistry; Max Planck Institute for Chemistry
Citation:
Phillips et al., Geophysical Research Abstracts, 2015, 17, EGU2015-10435
Publisher:
Copernicus Publications
Journal:
Geophysical Research Abstracts
Publication Date:
25-Feb-2015
URI:
http://hdl.handle.net/10034/345822
Additional Links:
http://www.geophysical-research-abstracts.net/home.html; http://meetingorganizer.copernicus.org/EGU2015/EGU2015-10435.pdf
Type:
Meetings and Proceedings
Language:
en
Description:
Oral presentation abstract given at EGU General Assembly 2015.
EISSN:
1607-7962
Sponsors:
Max Planck Society
Appears in Collections:
Natural Sciences

Full metadata record

DC FieldValue Language
dc.contributor.authorPhillips, Gavin J.en
dc.contributor.authorThieser, Jimen
dc.contributor.authorTang, Mingjinen
dc.contributor.authorSobanski, Nicolasen
dc.contributor.authorFachinger, Johannesen
dc.contributor.authorDrewnick, Franken
dc.contributor.authorLelieveld, Josen
dc.contributor.authorCrowley, John N.en
dc.date.accessioned2015-03-02T13:02:49Zen
dc.date.available2015-03-02T13:02:49Zen
dc.date.issued2015-02-25en
dc.identifier.citationPhillips et al., Geophysical Research Abstracts, 2015, 17, EGU2015-10435en
dc.identifier.urihttp://hdl.handle.net/10034/345822en
dc.descriptionOral presentation abstract given at EGU General Assembly 2015.en
dc.description.abstractWe present estimates of the uptake coefficient of N2O5 using ambient measurements of the trace gases N2O5 and ClNO2 and particle composition and surface area at the Kleiner Feldberg observatory, near Frankfurt, SW Germany, during the PARADE campaign (summer 2011). Three methods used to extract gamma(N2O5) from the datasets were found to be in reasonable agreement, generating values between 0.001 and 0.4. Gamma (N2O5) displayed a significant dependence on relative humidity (RH), the largest values obtained, as expected, at high RH. No significant dependence of gamma(N2O5) on particle organic content or sulphate-to-organic ratio was observed. The variability in gamma(N2O5) is however large, indicating that humidity is not the sole factor determining the uptake coefficient. There is also an indication that the yield of ClNO2 with respect to N2O5 uptake is larger with lower concentrations of PM1 total organics. Our results will be compared to existing uptake coefficients from laboratory studies and those derived from field observations.en
dc.description.sponsorshipMax Planck Societyen
dc.language.isoenen
dc.publisherCopernicus Publicationsen
dc.relation.urlhttp://www.geophysical-research-abstracts.net/home.htmlen
dc.relation.urlhttp://meetingorganizer.copernicus.org/EGU2015/EGU2015-10435.pdfen
dc.subjectatmospheric chemistryen
dc.subjectreactive nitrogenen
dc.subjectair pollutionen
dc.titleClNO2 and nitrate formation via N2O5 uptake to particles: Derivation of N2O5 uptake coefficients from ambient datasetsen
dc.typeMeetings and Proceedingsen
dc.identifier.eissn1607-7962en
dc.contributor.departmentMax Planck Institute for Chemistry/University of Chester ; Max Planck Institute for Chemistry ; Max Planck Institute for Chemistry ; Max Planck Institute for Chemistry ; Max Planck Institute for Chemistry ; Max Planck Institute for Chemistry ; Max Planck Institute for Chemistry; Max Planck Institute for Chemistryen
dc.identifier.journalGeophysical Research Abstractsen
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