Identification of marine and continental aerosol sources in Paris using high resolution aerosol mass spectrometry

Monica Crippa, Imad El Haddad, Jay G. Slowik, Peter F. Decarlo, Claudia Mohr, Maarten F. Heringa, Roberto Chirico, Nicolas Marchand, Jean Sciare, Urs Baltensperger, André S. H. Prévôt

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Abstract

Major summertime aerosol emission sources in Paris were assessed using a high resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS). The application of positive matrix factorization (PMF) to the highly mass and time-resolved AMS measurements allowed the identification of primary and secondary sources of organic (OA) and sulfate aerosols. Primary anthropogenic emissions contributed on average ~27% (14.7% cooking, 12% traffic) to the total organic mass, while the major contribution to the organic fraction was associated with secondary formation products. Low-volatility oxygenated OA (LV-OOA, 25.2%) and semi-volatile oxygenated OA (SV-OOA, 32.4%) factors were classified as SOA. An additional component with high S: C and O: C ratios was identified and attributed to marine emissions (marine organic aerosol, MOA), owing to its high correlation with methanesulfonic acid (R2 = 0.84) and contributing on average 15.7% to the total OA mass, even in the continental megacity of Paris. Non-sea salt sulfate was apportioned by including both organic and sulfate ions in the PMF data matrix. This allowed apportionment of submicron sulfate to continental versus marine sources. A detailed source apportionment of PM1 combining AMS, aethalometer, and filter data is presented. Key Points Regional aerosol sources have large effects on Paris air qualityMarine aerosols affect the continental megacity of ParisDiscrimination of several secondary organic aerosol formation mechanisms © 2013. American Geophysical Union. All Rights Reserved.
Original languageEnglish
Pages (from-to)1950 - 1963
Number of pages14
JournalJournal of Geophysical Research
Volume118
Issue number4
DOIs
Publication statusPublished - 27 Feb 2013
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Crippa, M., El Haddad, I., Slowik, J. G., Decarlo, P. F., Mohr, C., Heringa, M. F., Chirico, R., Marchand, N., Sciare, J., Baltensperger, U., & Prévôt, A. S. H. (2013). Identification of marine and continental aerosol sources in Paris using high resolution aerosol mass spectrometry. Journal of Geophysical Research, 118(4), 1950 - 1963. https://doi.org/10.1002/jgrd.50151