Articles | Volume 16, issue 13
https://doi.org/10.5194/acp-16-8095-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-16-8095-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
04 Jul 2016
Research article |
| 04 Jul 2016
Evidence for ambient dark aqueous SOA formation in the Po Valley, Italy
Amy P. Sullivan
CORRESPONDING AUTHOR
Colorado State University, Department of Atmospheric Science, Fort
Collins, Colorado 80523, USA
Natasha Hodas
California Institute of Technology, Division of Chemical Engineering,
Pasadena, California 91125, USA
Barbara J. Turpin
Rutgers University, Department of Environmental Sciences, New
Brunswick, New Jersey 08901, USA
Kate Skog
University of Wisconsin – Madison, Department of Chemistry, Madison,
Wisconsin 53706, USA
Frank N. Keutsch
University of Wisconsin – Madison, Department of Chemistry, Madison,
Wisconsin 53706, USA
Harvard University, Department of Chemistry and Chemical Biology,
Cambridge, Massachusetts 02138, USA
Stefania Gilardoni
Istituto di Scienze dell'Atmosfera e del Clima, Consiglio Nazionale
delle Ricerche, 40129 Bologna, Italy
Marco Paglione
Istituto di Scienze dell'Atmosfera e del Clima, Consiglio Nazionale
delle Ricerche, 40129 Bologna, Italy
Matteo Rinaldi
Istituto di Scienze dell'Atmosfera e del Clima, Consiglio Nazionale
delle Ricerche, 40129 Bologna, Italy
Stefano Decesari
Istituto di Scienze dell'Atmosfera e del Clima, Consiglio Nazionale
delle Ricerche, 40129 Bologna, Italy
Maria Cristina Facchini
Istituto di Scienze dell'Atmosfera e del Clima, Consiglio Nazionale
delle Ricerche, 40129 Bologna, Italy
Laurent Poulain
Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany
Hartmut Herrmann
Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany
Alfred Wiedensohler
Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany
Eiko Nemitz
Centre for Ecology and Hydrology, Bush Estate, Penicuik, EH26QB,
UK
Marsailidh M. Twigg
Centre for Ecology and Hydrology, Bush Estate, Penicuik, EH26QB,
UK
Jeffrey L. Collett Jr.
Colorado State University, Department of Atmospheric Science, Fort
Collins, Colorado 80523, USA
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Short summary
This paper presents the results from our measurements and approach for the investigation of aqueous secondary organic aerosol (aqSOA) formation in the ambient atmosphere. When local aqSOA formation was observed, a correlation of water-soluble organic carbon with organic aerosol, aerosol liquid water, relative humidity, and aerosol nitrate was found. Key factors of local aqSOA production include air mass stagnation, formation of local nitrate overnight, and significant amounts of ammonia.
This paper presents the results from our measurements and approach for the investigation of...
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