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Karl, M. (author), Kukkonen, J. (author), Keuken, M.P. (author), Lützenkirchen, S. (author), Pirjola, L. (author), Hussein, T. (author)This study evaluates the influence of aerosol processes on the particle number (PN) concentrations in three major European cities on the temporal scale of 1 h, i.e., on the neighborhood and city scales. We have used selected measured data of particle size distributions from previous campaigns in the cities of Helsinki, Oslo and Rotterdam. The...article 2016
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TNO Fysisch en Elektronisch Laboratorium (author), O'Dowd, C.D. (author), Haemeri, K. (author), Maekelae, J.M. (author), Pirjola, L. (author), Kulmala, M. (author), Jennings, S.G. (author), Berresheim, H. (author), Hansson, H-C. (author), de Leeuw, G. (author), Kunz, G.J. (author), Allen, A.G. (author), Hewitt, C.N. (author), Jackson, A. (author), Viisanen, Y. (author), Hoffman, T. (author)A dedicated study into the formation of new particles, New Particle Formation and Fate in the Coastal Environment (PARFORCE), was conducted over a period from 1998 to 1999 at the Mace Head Atmospheric Research Station on the western coast of Ireland. Continuous measurements of new particle formation were taken over the 2-year period while two...article 2002
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- Becker, E. (author), Hoell, C. (author), Kulmala, M. (author), Hameri, K. (author), Pirjola, L. (author), Aalto, P. (author), Geever, M. (author), Kunz, G. (author), Hansson, H.-C. (author), Strom, J. (author), Jennings, M. (author), O'Dowd, C.D. (author), Makela, J.M. (author), Vakeva, M. (author), de Leeuw, G. (author), TNO Fysisch en Elektronisch Laboratorium (author) article 2001
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O'Dowd, C.D. (author), Mäkela, J.M. (author), Korhonen, P. (author), Hämeri, K. (author), Väkevä, M. (author), Pirjola, L. (author), Hansson, H-C. (author), Jennings, S.G. (author), de Leeuw, G. (author), Kunz, G.J. (author), Berresheim, H. (author), Harrison, R.M. (author), Allen, A.G. (author), Viisanen, Y. (author), Kulmala, M. (author), TNO Fysisch en Elektronisch Laboratorium (author)Understanding the formation of natural particles in the atmosphere, and their growth to radiatively active sizes, is critical to quantifying the role of anthropogenic emissions on cloud formation, climate change and public health. Only a few regions have been identified as strong natural sources of aerosols in the boundary layer: in particular,...conference paper 2000
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- O'Dowd, C.D. (author), Becker, E. (author), Hoell, C. (author), Mäkela, J.M. (author), Kulmala, M. (author), Hämeri, K. (author), Väkevä, M. (author), Pirjola, L. (author), Aalto, P. (author), Hansson, H-C. (author), Strom, J. (author), Jennings, S.G. (author), Geever, M. (author), de Leeuw, G. (author), Kunz, G.J. (author), Berresheim, H. (author), Hewitt, C.N. (author), Sartin, J. (author), Harrison, R.M. (author), Allen, A.G. (author), Viisanen, Y. (author), Korhonen, P. (author), Rapsomanikis, S. (author), Hoffman, T. (author), TNO Fysisch en Elektronisch Laboratorium (author) article 2000