In situ, satellite measurement and model evidence on the dominant regional contribution to fine particulate matter levels in the Paris megacity

M. Beekmann, A. S H Prévôt, F. Drewnick, J. Sciare, S. N. Pandis, H. A C Denier Van Der Gon, M. Crippa, F. Freutel, L. Poulain, V. Ghersi, E. Rodriguez, S. Beirle, P. Zotter, S. L. Von Der Weiden-Reinmüller, M. Bressi, Christos Fountoukis, H. Petetin, S. Szidat, J. Schneider, A. Rosso & 20 others I. El Haddad, A. Megaritis, Q. J. Zhang, V. Michoud, J. G. Slowik, S. Moukhtar, P. Kolmonen, A. Stohl, S. Eckhardt, A. Borbon, V. Gros, N. Marchand, J. L. Jaffrezo, A. Schwarzenboeck, A. Colomb, A. Wiedensohler, S. Borrmann, M. Lawrence, A. Baklanov, U. Baltensperger

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

A detailed characterization of air quality in the megacity of Paris (France) during two 1-month intensive campaigns and from additional 1-year observations revealed that about 70 % of the urban background fine particulate matter (PM) is transported on average into the megacity from upwind regions. This dominant influence of regional sources was confirmed by in situ measurements during short intensive and longer-term campaigns, aerosol optical depth (AOD) measurements from ENVISAT, and modeling results from PMCAMx and CHIMERE chemistry transport models. While advection of sulfate is well documented for other megacities, there was surprisingly high contribution from long-range transport for both nitrate and organic aerosol. The origin of organic PM was investigated by comprehensive analysis of aerosol mass spectrometer (AMS), radiocarbon and tracer measurements during two intensive campaigns. Primary fossil fuel combustion emissions constituted less than 20 % in winter and 40 % in summer of carbonaceous fine PM, unexpectedly small for a megacity. Cooking activities and, during winter, residential wood burning are the major primary organic PM sources. This analysis suggests that the major part of secondary organic aerosol is of modern origin, i.e., from biogenic precursors and from wood burning. Black carbon concentrations are on the lower end of values encountered in megacities worldwide, but still represent an issue for air quality. These comparatively low air pollution levels are due to a combination of low emissions per inhabitant, flat terrain, and a meteorology that is in general not conducive to local pollution build-up. This revised picture of a megacity only being partially responsible for its own average and peak PM levels has important implications for air pollution regulation policies.

Original languageEnglish
Pages (from-to)9577-9591
Number of pages15
JournalAtmospheric Chemistry and Physics
Volume15
Issue number16
DOIs
Publication statusPublished - 27 Aug 2015
Externally publishedYes

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megacity
particulate matter
aerosol
particulate organic matter
air quality
atmospheric pollution
winter
long range transport
black carbon
meteorology
in situ measurement
optical depth
fossil fuel
in situ
advection
spectrometer
combustion
tracer
sulfate
nitrate

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Beekmann, M., Prévôt, A. S. H., Drewnick, F., Sciare, J., Pandis, S. N., Denier Van Der Gon, H. A. C., ... Baltensperger, U. (2015). In situ, satellite measurement and model evidence on the dominant regional contribution to fine particulate matter levels in the Paris megacity. Atmospheric Chemistry and Physics, 15(16), 9577-9591. https://doi.org/10.5194/acp-15-9577-2015

In situ, satellite measurement and model evidence on the dominant regional contribution to fine particulate matter levels in the Paris megacity. / Beekmann, M.; Prévôt, A. S H; Drewnick, F.; Sciare, J.; Pandis, S. N.; Denier Van Der Gon, H. A C; Crippa, M.; Freutel, F.; Poulain, L.; Ghersi, V.; Rodriguez, E.; Beirle, S.; Zotter, P.; Von Der Weiden-Reinmüller, S. L.; Bressi, M.; Fountoukis, Christos; Petetin, H.; Szidat, S.; Schneider, J.; Rosso, A.; El Haddad, I.; Megaritis, A.; Zhang, Q. J.; Michoud, V.; Slowik, J. G.; Moukhtar, S.; Kolmonen, P.; Stohl, A.; Eckhardt, S.; Borbon, A.; Gros, V.; Marchand, N.; Jaffrezo, J. L.; Schwarzenboeck, A.; Colomb, A.; Wiedensohler, A.; Borrmann, S.; Lawrence, M.; Baklanov, A.; Baltensperger, U.

In: Atmospheric Chemistry and Physics, Vol. 15, No. 16, 27.08.2015, p. 9577-9591.

Research output: Contribution to journalArticle

Beekmann, M, Prévôt, ASH, Drewnick, F, Sciare, J, Pandis, SN, Denier Van Der Gon, HAC, Crippa, M, Freutel, F, Poulain, L, Ghersi, V, Rodriguez, E, Beirle, S, Zotter, P, Von Der Weiden-Reinmüller, SL, Bressi, M, Fountoukis, C, Petetin, H, Szidat, S, Schneider, J, Rosso, A, El Haddad, I, Megaritis, A, Zhang, QJ, Michoud, V, Slowik, JG, Moukhtar, S, Kolmonen, P, Stohl, A, Eckhardt, S, Borbon, A, Gros, V, Marchand, N, Jaffrezo, JL, Schwarzenboeck, A, Colomb, A, Wiedensohler, A, Borrmann, S, Lawrence, M, Baklanov, A & Baltensperger, U 2015, 'In situ, satellite measurement and model evidence on the dominant regional contribution to fine particulate matter levels in the Paris megacity', Atmospheric Chemistry and Physics, vol. 15, no. 16, pp. 9577-9591. https://doi.org/10.5194/acp-15-9577-2015
Beekmann, M. ; Prévôt, A. S H ; Drewnick, F. ; Sciare, J. ; Pandis, S. N. ; Denier Van Der Gon, H. A C ; Crippa, M. ; Freutel, F. ; Poulain, L. ; Ghersi, V. ; Rodriguez, E. ; Beirle, S. ; Zotter, P. ; Von Der Weiden-Reinmüller, S. L. ; Bressi, M. ; Fountoukis, Christos ; Petetin, H. ; Szidat, S. ; Schneider, J. ; Rosso, A. ; El Haddad, I. ; Megaritis, A. ; Zhang, Q. J. ; Michoud, V. ; Slowik, J. G. ; Moukhtar, S. ; Kolmonen, P. ; Stohl, A. ; Eckhardt, S. ; Borbon, A. ; Gros, V. ; Marchand, N. ; Jaffrezo, J. L. ; Schwarzenboeck, A. ; Colomb, A. ; Wiedensohler, A. ; Borrmann, S. ; Lawrence, M. ; Baklanov, A. ; Baltensperger, U. / In situ, satellite measurement and model evidence on the dominant regional contribution to fine particulate matter levels in the Paris megacity. In: Atmospheric Chemistry and Physics. 2015 ; Vol. 15, No. 16. pp. 9577-9591.
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abstract = "A detailed characterization of air quality in the megacity of Paris (France) during two 1-month intensive campaigns and from additional 1-year observations revealed that about 70 {\%} of the urban background fine particulate matter (PM) is transported on average into the megacity from upwind regions. This dominant influence of regional sources was confirmed by in situ measurements during short intensive and longer-term campaigns, aerosol optical depth (AOD) measurements from ENVISAT, and modeling results from PMCAMx and CHIMERE chemistry transport models. While advection of sulfate is well documented for other megacities, there was surprisingly high contribution from long-range transport for both nitrate and organic aerosol. The origin of organic PM was investigated by comprehensive analysis of aerosol mass spectrometer (AMS), radiocarbon and tracer measurements during two intensive campaigns. Primary fossil fuel combustion emissions constituted less than 20 {\%} in winter and 40 {\%} in summer of carbonaceous fine PM, unexpectedly small for a megacity. Cooking activities and, during winter, residential wood burning are the major primary organic PM sources. This analysis suggests that the major part of secondary organic aerosol is of modern origin, i.e., from biogenic precursors and from wood burning. Black carbon concentrations are on the lower end of values encountered in megacities worldwide, but still represent an issue for air quality. These comparatively low air pollution levels are due to a combination of low emissions per inhabitant, flat terrain, and a meteorology that is in general not conducive to local pollution build-up. This revised picture of a megacity only being partially responsible for its own average and peak PM levels has important implications for air pollution regulation policies.",
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AU - Beekmann, M.

AU - Prévôt, A. S H

AU - Drewnick, F.

AU - Sciare, J.

AU - Pandis, S. N.

AU - Denier Van Der Gon, H. A C

AU - Crippa, M.

AU - Freutel, F.

AU - Poulain, L.

AU - Ghersi, V.

AU - Rodriguez, E.

AU - Beirle, S.

AU - Zotter, P.

AU - Von Der Weiden-Reinmüller, S. L.

AU - Bressi, M.

AU - Fountoukis, Christos

AU - Petetin, H.

AU - Szidat, S.

AU - Schneider, J.

AU - Rosso, A.

AU - El Haddad, I.

AU - Megaritis, A.

AU - Zhang, Q. J.

AU - Michoud, V.

AU - Slowik, J. G.

AU - Moukhtar, S.

AU - Kolmonen, P.

AU - Stohl, A.

AU - Eckhardt, S.

AU - Borbon, A.

AU - Gros, V.

AU - Marchand, N.

AU - Jaffrezo, J. L.

AU - Schwarzenboeck, A.

AU - Colomb, A.

AU - Wiedensohler, A.

AU - Borrmann, S.

AU - Lawrence, M.

AU - Baklanov, A.

AU - Baltensperger, U.

PY - 2015/8/27

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