Characterization of urban aerosol in Cork city (Ireland) using aerosol mass spectrometry

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dc.contributor.authorDall'Osto, M.
dc.contributor.authorOvadnevaite, J.
dc.contributor.authorCeburnis, D.
dc.contributor.authorMartin, D.
dc.contributor.authorHealy, Robert M.
dc.contributor.authorO'Connor, Ian P.
dc.contributor.authorKourtchev, Ivan
dc.contributor.authorSodeau, John R.
dc.contributor.authorWenger, John C.
dc.contributor.authorO'Dowd, Colin D.
dc.contributor.funderHigher Education Authorityen
dc.contributor.funderEnvironmental Protection Agency
dc.date.accessioned2016-07-28T12:31:01Z
dc.date.available2016-07-28T12:31:01Z
dc.date.issued2013-05-15
dc.date.updated2014-06-06T14:18:21Z
dc.description.abstractAmbient wintertime background urban aerosol in Cork city, Ireland, was characterized using aerosol mass spectrometry. During the three-week measurement study in 2009, 93% of the ca. 1 350 000 single particles characterized by an Aerosol Time-of-Flight Mass Spectrometer (TSI ATOFMS) were classified into five organic-rich particle types, internally mixed to different proportions with elemental carbon (EC), sulphate and nitrate, while the remaining 7% was predominantly inorganic in nature. Non-refractory PM1 aerosol was characterized using a High Resolution Time-of-Flight Aerosol Mass Spectrometer (Aerodyne HR-ToF-AMS) and was also found to comprise organic aerosol as the most abundant species (62 %), followed by nitrate (15 %), sulphate (9 %) and ammonium (9 %), and chloride (5 %). Positive matrix factorization (PMF) was applied to the HR-ToF-AMS organic matrix, and a five-factor solution was found to describe the variance in the data well. Specifically, "hydrocarbon-like" organic aerosol (HOA) comprised 20% of the mass, "low-volatility" oxygenated organic aerosol (LV-OOA) comprised 18 %, "biomass burning" organic aerosol (BBOA) comprised 23 %, non-wood solid-fuel combustion "peat and coal" organic aerosol (PCOA) comprised 21 %, and finally a species type characterized by primary m/z peaks at 41 and 55, similar to previously reported "cooking" organic aerosol (COA), but possessing different diurnal variations to what would be expected for cooking activities, contributed 18 %. Correlations between the different particle types obtained by the two aerosol mass spectrometers are also discussed. Despite wood, coal and peat being minor fuel types used for domestic space heating in urban areas, their relatively low combustion efficiencies result in a significant contribution to PM1 aerosol mass (44% and 28% of the total organic aerosol mass and non-refractory total PM1, respectively).Ambient wintertime background urban aerosol in Cork city, Ireland, was characterized using aerosol mass spectrometry. During the three-week measurement study in 2009, 93% of the ca. 1 350 000 single particles characterized by an Aerosol Time-of-Flight Mass Spectrometer (TSI ATOFMS) were classified into five organic-rich particle types, internally mixed to different proportions with elemental carbon (EC), sulphate and nitrate, while the remaining 7% was predominantly inorganic in nature. Non-refractory PM1 aerosol was characterized using a High Resolution Time-of-Flight Aerosol Mass Spectrometer (Aerodyne HR-ToF-AMS) and was also found to comprise organic aerosol as the most abundant species (62 %), followed by nitrate (15 %), sulphate (9 %) and ammonium (9 %), and chloride (5 %). Positive matrix factorization (PMF) was applied to the HR-ToF-AMS organic matrix, and a five-factor solution was found to describe the variance in the data well. Specifically, "hydrocarbon-like" organic aerosol (HOA) comprised 20% of the mass, "low-volatility" oxygenated organic aerosol (LV-OOA) comprised 18 %, "biomass burning" organic aerosol (BBOA) comprised 23 %, non-wood solid-fuel combustion "peat and coal" organic aerosol (PCOA) comprised 21 %, and finally a species type characterized by primary m/z peaks at 41 and 55, similar to previously reported "cooking" organic aerosol (COA), but possessing different diurnal variations to what would be expected for cooking activities, contributed 18 %. Correlations between the different particle types obtained by the two aerosol mass spectrometers are also discussed. Despite wood, coal and peat being minor fuel types used for domestic space heating in urban areas, their relatively low combustion efficiencies result in a significant contribution to PM1 aerosol mass (44% and 28% of the total organic aerosol mass and non-refractory total PM1, respectively).en
dc.description.sponsorshipHigher Education Authority (PRTLI Cycle V)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationDall'Osto, M., Ovadnevaite, J., Ceburnis, D., Martin, D., Healy, R.M., O'Connor, I.P., Kourtchev, I., Sodeau, J.R., Wenger, J.C. and O'Dowd, C. (2013) 'Characterization of urban aerosol in Cork city (Ireland) using aerosol mass spectrometry', Atmospheric Chemistry and Physics, 13, pp. 4997–5015. doi: 10.5194/acp-13-4997-2013en
dc.identifier.doi10.5194/acp-13-4997-2013
dc.identifier.endpage5015en
dc.identifier.issn1680-73161680-7316
dc.identifier.journaltitleAtmospheric Chemistry and Physicsen
dc.identifier.startpage4997en
dc.identifier.urihttps://hdl.handle.net/10468/2946
dc.identifier.volume13en
dc.language.isoenen
dc.publisherCopernicus Publications on behalf of the European Geosciences Union (EGU)en
dc.rights© 2013, the Authors. This work is distributed under the Creative Commons Attribution 3.0 License.en
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/en
dc.subjectAerosolen
dc.subjectAerosol compositionen
dc.subjectMass spectrometryen
dc.subjectMeasurement methoden
dc.subjectUrban atmosphereen
dc.subjectCorken
dc.subjectIrelanden
dc.subjectMunsteren
dc.titleCharacterization of urban aerosol in Cork city (Ireland) using aerosol mass spectrometryen
dc.typeArticle (peer-reviewed)en
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