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dc.contributor.authorCorral, Andrea F.
dc.contributor.authorDadashazar, Hossein
dc.contributor.authorStahl, Connor
dc.contributor.authorEdwards, Eva-Lou
dc.contributor.authorZuidema, Paquita
dc.contributor.authorSorooshian, Armin
dc.date.accessioned2021-05-08T00:08:52Z
dc.date.available2021-05-08T00:08:52Z
dc.date.issued2020-11-10
dc.identifier.citationCorral, A. F., Dadashazar, H., Stahl, C., Edwards, E. L., Zuidema, P., & Sorooshian, A. (2020). Source Apportionment of Aerosol at a Coastal Site and Relationships with Precipitation Chemistry: A Case Study over the Southeast United States. Atmosphere, 11(11), 1212.en_US
dc.identifier.issn2073-4433
dc.identifier.doi10.3390/atmos11111212
dc.identifier.urihttp://hdl.handle.net/10150/658224
dc.description.abstractThis study focuses on the long-term aerosol and precipitation chemistry measurements from colocated monitoring sites in Southern Florida between 2013 and 2018. A positive matrix factorization (PMF) model identified six potential emission sources impacting the study area. The PMF model solution yielded the following source concentration profiles: (i) combustion; (ii) fresh sea salt; (iii) aged sea salt; (iv) secondary sulfate; (v) shipping emissions; and (vi) dust. Based on these results, concentration-weighted trajectory maps were developed to identify sources contributing to the PMF factors. Monthly mean precipitation pH values ranged from 4.98 to 5.58, being positively related to crustal species and negatively related to SO42-. Sea salt dominated wet deposition volume-weighted concentrations year-round without much variability in its mass fraction in contrast to stronger seasonal changes in PM2.5 composition where fresh sea salt was far less influential. The highest mean annual deposition fluxes were attributed to Cl-, NO3-, SO42-, and Na+ between April and October. Nitrate is strongly correlated with dust constituents (unlike sea salt) in precipitation samples, indicative of efficient partitioning to dust. Interrelationships between precipitation chemistry and aerosol species based on long-term surface data provide insight into aerosol-cloud-precipitation interactions.en_US
dc.language.isoenen_US
dc.publisherMDPI AGen_US
dc.rights© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subjectCWTen_US
dc.subjectIMPROVEen_US
dc.subjectNADPen_US
dc.subjectPositive matrix factorizationen_US
dc.subjectSource apportionmenten_US
dc.titleSource Apportionment of Aerosol at a Coastal Site and Relationships with Precipitation Chemistry: A Case Study over the Southeast United Statesen_US
dc.typeArticleen_US
dc.identifier.eissn2073-4433
dc.contributor.departmentDepartment of Chemical and Environmental Engineering, The University of Arizonaen_US
dc.contributor.departmentDepartment of Hydrology and Atmospheric Sciences, The University of Arizonaen_US
dc.identifier.journalAtmosphereen_US
dc.description.noteOpen access journalen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.journaltitleAtmosphere
dc.source.volume11
dc.source.issue11
dc.source.beginpage1212
refterms.dateFOA2021-05-08T00:08:53Z


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© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).