Simulating the formation of carbonaceous aerosol in a European Megacity (Paris) during the MEGAPOLI summer and winter campaigns

Christos Fountoukis, Athanasios G. Megaritis, Ksakousti Skyllakou, Panagiotis E. Charalampidis, Hugo A C Denier Van Der Gon, Monica Crippa, André S H Prévôt, Friederike Fachinger, Alfred Wiedensohler, Christodoulos Pilinis, Spyros N. Pandis

Research output: Contribution to journalArticle

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Abstract

We use a three-dimensional regional chemical transport model (PMCAMx) with high grid resolution and high-resolution emissions (4 × 4 km2) over the Paris greater area to simulate the formation of carbonaceous aerosol during a summer (July 2009) and a winter (January/February 2010) period as part of the MEGAPOLI (megacities: emissions, urban, regional, and global atmospheric pollution and climate effects, and Integrated tools for assessment and mitigation) campaigns. Model predictions of carbonaceous aerosol are compared against Aerodyne aerosol mass spectrometer and black carbon (BC) high time resolution measurements from three ground sites. PMCAMx predicts BC concentrations reasonably well reproducing the majority (70ĝ€%) of the hourly data within a factor of two during both periods. The agreement for the summertime secondary organic aerosol (OA) concentrations is also encouraging (mean bias Combining double low line 0.1 μg mĝ'3) during a photochemically intense period. The model tends to underpredict the summertime primary OA concentrations in the Paris greater area (by approximately 0.8 μg mĝ'3) mainly due to missing primary OA emissions from cooking activities. The total cooking emissions are estimated to be approximately 80 mg dĝ'1 per capita and have a distinct diurnal profile in which 50 % of the daily cooking OA is emitted during lunch time (12:00-14:00 LT) and 20 % during dinner time (20:00-22:00 LT). Results also show a large underestimation of secondary OA in the Paris greater area during wintertime (mean bias Combining double low line ĝ€ĝ'2.3 μg mĝ'3) pointing towards a secondary OA formation process during low photochemical activity periods that is not simulated in the model.

Original languageEnglish
Pages (from-to)3727-3741
Number of pages15
JournalAtmospheric Chemistry and Physics
Volume16
Issue number6
DOIs
Publication statusPublished - 21 Mar 2016
Externally publishedYes

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megacity
aerosol
winter
summer
black carbon
pollution effect
aerosol formation
climate effect
spectrometer
mitigation
atmospheric pollution
prediction

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Fountoukis, C., Megaritis, A. G., Skyllakou, K., Charalampidis, P. E., Van Der Gon, H. A. C. D., Crippa, M., ... Pandis, S. N. (2016). Simulating the formation of carbonaceous aerosol in a European Megacity (Paris) during the MEGAPOLI summer and winter campaigns. Atmospheric Chemistry and Physics, 16(6), 3727-3741. https://doi.org/10.5194/acp-16-3727-2016

Simulating the formation of carbonaceous aerosol in a European Megacity (Paris) during the MEGAPOLI summer and winter campaigns. / Fountoukis, Christos; Megaritis, Athanasios G.; Skyllakou, Ksakousti; Charalampidis, Panagiotis E.; Van Der Gon, Hugo A C Denier; Crippa, Monica; Prévôt, André S H; Fachinger, Friederike; Wiedensohler, Alfred; Pilinis, Christodoulos; Pandis, Spyros N.

In: Atmospheric Chemistry and Physics, Vol. 16, No. 6, 21.03.2016, p. 3727-3741.

Research output: Contribution to journalArticle

Fountoukis, C, Megaritis, AG, Skyllakou, K, Charalampidis, PE, Van Der Gon, HACD, Crippa, M, Prévôt, ASH, Fachinger, F, Wiedensohler, A, Pilinis, C & Pandis, SN 2016, 'Simulating the formation of carbonaceous aerosol in a European Megacity (Paris) during the MEGAPOLI summer and winter campaigns', Atmospheric Chemistry and Physics, vol. 16, no. 6, pp. 3727-3741. https://doi.org/10.5194/acp-16-3727-2016
Fountoukis, Christos ; Megaritis, Athanasios G. ; Skyllakou, Ksakousti ; Charalampidis, Panagiotis E. ; Van Der Gon, Hugo A C Denier ; Crippa, Monica ; Prévôt, André S H ; Fachinger, Friederike ; Wiedensohler, Alfred ; Pilinis, Christodoulos ; Pandis, Spyros N. / Simulating the formation of carbonaceous aerosol in a European Megacity (Paris) during the MEGAPOLI summer and winter campaigns. In: Atmospheric Chemistry and Physics. 2016 ; Vol. 16, No. 6. pp. 3727-3741.
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