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| Titel |
Application of mobile aerosol and trace gas measurements for the investigation of megacity air pollution emissions: the Paris metropolitan area |
| VerfasserIn |
S.-L. von der Weiden-Reinmüller, F. Drewnick, M. Crippa, A. S. H. Prévôt, F. Meleux, U. Baltensperger, M. Beekmann, S. Borrmann |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 7, no. 1 ; Nr. 7, no. 1 (2014-01-28), S.279-299 |
| Datensatznummer |
250115572
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| Publikation (Nr.) |
 copernicus.org/amt-7-279-2014.pdf |
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| Zusammenfassung |
| For the investigation of megacity emission development and the impact outside the
source region, mobile aerosol and trace gas measurements were carried out in
the Paris metropolitan area between 1 July and 31 July 2009 (summer
conditions) and 15 January and 15 February 2010 (winter conditions) in the
framework of the European Union FP7 MEGAPOLI project. Two mobile
laboratories, MoLa and MOSQUITA, were deployed, and here an overview of these
measurements and an investigation of the applicability of such measurements
for the analysis of megacity emissions are presented. Both laboratories
measured physical and chemical properties of fine and ultrafine aerosol
particles as well as gas phase constituents of relevance for urban pollution
scenarios. The applied measurement strategies include cross-section
measurements for the investigation of plume structure and quasi-Lagrangian
measurements axially along the flow of the city's pollution plume to study
plume aging processes. Results of intercomparison measurements between the
two mobile laboratories represent the adopted data quality assurance
procedures. Most of the compared measurement devices show sufficient
agreement for combined data analysis. For the removal of data contaminated by
local pollution emissions a video tape analysis method was applied. Analysis
tools like positive matrix factorization and peak integration by key analysis
applied to high-resolution time-of-flight aerosol mass spectrometer data are
used for in-depth data analysis of the organic particulate matter. Several
examples, including a combination of MoLa and MOSQUITA measurements
on a cross section through the Paris emission plume, are provided to demonstrate
how such mobile measurements can be used to investigate the emissions of a
megacity. A critical discussion of advantages and limitations of mobile
measurements for the investigation of megacity emissions completes this work. |
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