Articles | Volume 16, issue 8
Atmos. Chem. Phys., 16, 4817–4835, 2016
https://doi.org/10.5194/acp-16-4817-2016
Atmos. Chem. Phys., 16, 4817–4835, 2016
https://doi.org/10.5194/acp-16-4817-2016
Research article
19 Apr 2016
Research article | 19 Apr 2016

Modeling and measurements of urban aerosol processes on the neighborhood scale in Rotterdam, Oslo and Helsinki

Matthias Karl et al.

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Cited articles

Dall'Osto, M., Thorpe, A., Beddows, D. C. S., Harrison, R. M., Barlow, J. F., Dunbar, T., Williams, P. I., and Coe, H.: Remarkable dynamics of nanoparticles in the urban atmosphere, Atmos. Chem. Phys., 11, 6623–6637, https://doi.org/10.5194/acp-11-6623-2011, 2011.
Fridell, E., Steen, E., and Peterson, K.: Primary particles in ship emission, Atmos. Environ., 42, 1160–1168, 2008.
Gidhagen, L., Johansson, C., Langner, J., and Foltescu, V. L.: Urban scale modeling of particle number concentration in Stockholm, Atmos. Environ., 39, 1711–1725, 2005.
Guha, A.: A unified Eulerian theory of turbulent deposition to smooth and rough surfaces, J. Aerosol Sci., 28, 1517–1537, 1997.
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Particles emitted from road traffic are subject to complex dilution processes as well as microphysical transformation processes. Particle measurements at major roads in Rotterdam, Oslo and Helsinki were used to analyze the relevance of microphysical transformation processes. Transformation processes caused changes of the particle number concentration of up to 20–30 % on the neighborhood scale. A simple parameterization to predict particle number concentrations in urban areas is presented.
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