On the simultaneous deployment of two single-particle mass spectrometers at an urban background and a roadside site during SAPUSS

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dc.contributor.author Dall'Osto, M.
dc.contributor.author Beddows, D.
dc.contributor.author McGillicuddy, Eoin
dc.contributor.author Esser-Gietl, Johanna K.
dc.contributor.author Harrison, Roy M.
dc.contributor.author Wenger, John C.
dc.date.accessioned 2017-06-21T11:01:27Z
dc.date.available 2017-06-21T11:01:27Z
dc.date.issued 2016-08-02
dc.identifier.citation Dall'Osto, M., Beddows, D. C. S., McGillicuddy, E. J., Esser-Gietl, J. K., Harrison, R. M. and Wenger, J. C. (2016) 'On the simultaneous deployment of two single-particle mass spectrometers at an urban background and a roadside site during SAPUSS', Atmospheric Chemistry and Physics, 16, pp.9693-9710. doi: 10.5194/acp-16-9693-2016 en
dc.identifier.volume 16
dc.identifier.startpage 9693
dc.identifier.endpage 9710
dc.identifier.issn 1680-7324
dc.identifier.uri http://hdl.handle.net/10468/4139
dc.identifier.doi 10.5194/acp-16-9693-2016
dc.description.abstract The aerosol time-of-flight mass spectrometer (ATOFMS) provides size-resolved information on the chemical composition of single particles with high time resolution. Within SAPUSS (Solving Aerosol Problems by Using Synergistic Strategies), continuous ATOFMS measurements of ambient particles were made simultaneously at two urban locations: urban background (UB) site and roadside (RS) site in the city of Barcelona (Spain) from 17 September to 18 October 2010. Two different instrumental configurations were used: ATOFMS (TSI 3800) with a converging nozzle inlet (high efficiency at about 800–2000 nm) at the UB site and ATOFMS (TSI 3800-100) with an aerodynamic lens inlet (high efficiency at about 300–700 nm) at the RS site. This is the first time, to our knowledge, that two ATOFMS instruments have been deployed in the same field study. The different instrument configurations had an impact on the observed particle types at the two sites. Nevertheless, 10 particle types were detected at both locations, including local and regional elemental carbon (22.7–58.9 % of total particles), fresh and aged sea salt (1.0–14.6 %), local and regional nitrate-containing aerosols (3–11.6 %), local lead-containing metallic particles (0.1–0.2 %), and transported Fe-nitrate particles (0.8–2.5 %). The ATOFMS at the UB also characterized four particle types: calcium-containing dust (0.9 %), Saharan dust (1.3 %), vanadium-containing particles (0.9 %), and vegetative debris (1.7 %). By contrast, the high statistical counts of fine particles detected at the RS allowed identification of eight particle types. Four of these contained organic nitrogen of primary and secondary origin, which highlights the complex nature of the sources and processes that contribute to this aerosol chemical component. Aminium salts were found related to coarse sulfate-rich particle types, suggesting heterogeneous reaction mechanisms for their formation. The other four particle types mainly containing organic carbon were found spiking at different types of the day, also showing a complex single-particle mixing state relationship between organic carbon and nitrate. This ATOFMS study clearly shows that the composition of atmospheric fine particles in Barcelona, and likely other Mediterranean urban areas, is complex, with a wide range of local and regional sources combining with chemical processing to produce at least 22 different particle types exhibiting different temporal behaviour. The advantage of using two ATOFMS instruments is also demonstrated, with the nozzle-skimmer configuration enabling detection of coarse dust particles and the aerodynamic lens configuration allowing better identification of particles rich in organic carbon and amines. Overall, we find that organic nitrogen is a considerable fraction of the single particles detected, especially at the traffic-dominated RS site. Further studies are needed, especially at high time resolution, to better understand the sources and properties of particulate organic nitrogen. en
dc.description.sponsorship D. G. de Calidad y Evaluacion Ambiental (Spanish Ministry of the Environment); Plan Nacional de IyD (Spanish Ministry of Science and Innovation (CGL2010-19464-VAMOS, CTQ2009-11572; CTQ2009-377-14777-C02-01-AERTRANS) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher European Geosciences Union en
dc.relation.uri http://www.atmos-chem-phys.net/16/9693/2016/
dc.rights © 2016, the Author(s). This work is distributed under the Creative Commons Attribution 3.0 License. en
dc.rights.uri https://creativecommons.org/licenses/by/3.0/ en
dc.subject ATOFMS en
dc.subject Single-particle mass spectrometers en
dc.subject SAPUSS en
dc.title On the simultaneous deployment of two single-particle mass spectrometers at an urban background and a roadside site during SAPUSS en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Eoin McGillicuddy, Chemistry and Environmental Research Institute, University College Cork, Ireland. +353-21-490-3000 Email: eoinjmc@gmail.com en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.contributor.funder Ministerio de Agricultura, Alimentación y Medio Ambiente
dc.contributor.funder Ministerio de Ciencia e Innovación
dc.contributor.funder FP7 People: Marie-Curie Actions
dc.description.status Peer reviewed en
dc.identifier.journaltitle Atmospheric Chemistry and Physics en
dc.internal.IRISemailaddress eoinjmc@gmail.com en
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/254773/EU/Solving Aerosol Problems Using Synergistic Strategies/SAPUSS


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© 2016, the Author(s). This work is distributed under the Creative Commons Attribution 3.0 License. Except where otherwise noted, this item's license is described as © 2016, the Author(s). This work is distributed under the Creative Commons Attribution 3.0 License.
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