TY  - JOUR
AU  - Sotiropoulou, R. E. P.
AU  - Tagaris, E.
AU  - Pilinis, C.
AU  - Anttila, T.
AU  - Kulmala, M.
TI  - Modeling new particle formation during air pollution episodes: impacts on aerosol and cloud condensation nuclei
JO  - Aerosol science and technology
VL  - 40
SN  - 0278-6826
CY  - Philadelphia, Pa
PB  - Taylor & Francis
M1  - PreJuSER-57459
SP  - 557 - 572
PY  - 2006
N1  - Record converted from VDB: 12.11.2012
AB  - The impact of new particle formation on regional air quality and CCN formation is for the first time explored using the UAM-AERO air quality model. New particles are formed by ternary nucleation of sulfuric acid, ammonia and water; subsequent growth of clusters to large sizes is driven by condensation of sulfuric acid and organic vapors, as described by the recently developed nano-Kohler theory. Application of the model in Athens (GAA) and Marseilles (GMA) reveals higher sulfuric acid condensational sink and gaseous sulfuric acid (hence nucleation rate) for the latter. However, limited quantities of organic vapors in the GMA inhibit the growth of the formed clusters; therefore new particle formation is more efficient in the GAA. A sensitivity analysis demonstrates that (1) uncertainty in vaporization enthalpy does not affect organic carbon formed by nucleation, and (2) an accommodation coefficient of unity gives excellent agreement of condensation sink with in-situ observations. Nucleation affects the aerosol size distribution, and can be an important contributor to CCN; locally it can be more important than chemical ageing of pre-existing aerosols.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000238473000005
DO  - DOI:10.1080/02786820600714346
UR  - https://juser.fz-juelich.de/record/57459
ER  -