Jorma Joutsensaari
Senior Researcher
Department of Technical Physics, Faculty of Science, Forestry and Technology
jorma.joutsensaari@uef.fi | +358 40 828 4146
0408284146
040 8284146
040 828 4146
+358 40 828 4146
+35840 828 4146
040 8284 146
+358 40 8284 146
+35840 8284 146
+358 40 8284146
+35840 8284146
+358408284146
040 8284146
040 828 4146
+358 40 828 4146
+35840 828 4146
040 8284 146
+358 40 8284 146
+35840 8284 146
+358 40 8284146
+35840 8284146
+358408284146
Research groups
Publications
127 items-
Aerosol–stratocumulus interactions: towards a better process understanding using closures between observations and large eddy simulations
Calderón, Silvia M.; Tonttila, Juha; Buchholz, Angela; Joutsensaari, Jorma; Komppula, Mika; Leskinen, Ari; Hao, Liqing; Moisseev, Dmitri; Pullinen, Iida; Tiitta, Petri; Xu, Jian; Virtanen, Annele; Kokkola, Harri; Romakkaniemi, Sami. 2022. Atmospheric chemistry and physics. 22: 12417-12441 -
Intercomparison of holographic imaging and single-particle forward light scattering in situ measurements of liquid clouds in changing atmospheric conditions
Tiitta, Petri; Leskinen, Ari; Kaikkonen, Ville A.; Molkoselkä, Eero O; Mäkynen, Anssi J; Joutsensaari, Jorma; Calderon, Silvia; Romakkaniemi, Sami; Komppula, Mika. 2022. Atmospheric measurement techniques. 15: 2993-3009 -
New particle formation event detection with Mask R-CNN
Su, Peifeng; Joutsensaari, Jorma; Dada, Lubna; Zaidan, Martha Arbayani; Nieminen, Tuomo; Li, Xinyang; Wu, Yusheng; Decesari, Stefano; Tarkoma, Sasu; Petäjä, Tuukka; Kulmala, Markku; Pellikka, Petri. 2022. Atmospheric chemistry and physics. 22: 1293-1309 -
Methyl Salicylate and Sesquiterpene Emissions Are Indicative for Aphid Infestation on Scots Pine
Kivimäenpää, Minna; Babalola, Aishat B; Joutsensaari, Jorma; Holopainen, Jarmo K. 2020. Forests. 11: 573 -
Analysis of high-temperature oxidation of wood combustion particles using tandem-DMA technique
Lamberg, Heikki; Sippula, Olli; Joutsensaari, Jorma; Ihalainen, Mika; Tissari, Jarkko; Lähde, Anna; Jokiniemi, Jorma. 2018. Combustion and flame. 191: 76-85 -
Combined effects of boundary layer dynamics and atmospheric chemistry on aerosol composition during new particle formation periods
Hao, Liqing; Garmash, Olga; Ehn, Mikael; Miettinen, Pasi; Massoli, Paola; Mikkonen, Santtu; Jokinen, Tuija; Roldin, Pontus; Aalto, Pasi; Yli-Juuti, Taina; Joutsensaari, Jorma; Petäjä, Tuukka; Kulmala, Markku; Lehtinen, Kari E J; Worsnop, Douglas R; Virtanen, Annele. 2018. Atmospheric chemistry and physics. 18: 17705-17716 -
Identification of new particle formation events with deep learning
Joutsensaari, Jorma; Ozon, Matthew; Nieminen, Tuomo; Mikkonen, Santtu; Lähivaara, Timo; Decesari, Stefano; Facchini, M Cristina; Laaksonen, Ari; Lehtinen, Kari EJ. 2018. Atmospheric chemistry and physics. 18: 9597-9615 -
Titanium dioxide (TiO2) fine particle capture and BVOC emissions of Betula pendula and Betula pubescens at different wind speeds
Räsänen JV, Leskinen JTT, Holopainen T, Joutsensaari J, Pasanen P, Kivimäenpää M. 2017. Atmospheric environment. 152: 345-353 -
A rapid technique for monitoring volatile organic compound emissions from wood-plastic composites
Väisänen T, Laitinen K, Tomppo L, Joutsensaari J, Raatikainen O, Lappalainen R, Yli-Pirilä P. 2016. Indoor and built environment. 2018; 27: 194-204 -
Herbivory by an outbreaking moth increases emissions of biogenic volatiles and leads to enhanced secondary organic aerosol formation capacity
Yli-Pirilä Pasi, Copolovici Lucian, Kännaste Astrid, Noe Steffen, Blande James D, Mikkonen Santtu, Klemola Tero, Pulkkinen Juha, Virtanen Annele, Laaksonen Ari, Joutsensaari Jorma, Niinemets Ülo, Holopainen Jarmo K. 2016. Environmental science and technology. 50: 11501-11510 -
A Novel Porous Tube Reactor for Nanoparticle Synthesis with Simultaneous Gas-Phase Reaction and Dilution
Ruusunen Jarno, Pyykönen Jouni, Ihalainen Mika, Tiitta Petri, Torvela Tiina, Karhunen Tommi, Sippula Olli, Qin Qi Hang, van Dijken Sebastiaan, Joutsensaari Jorma, Lähde Anna, Jokiniemi Jorma. 2015. Aerosol science and technology. 49: 1170-1180 -
Biotic stress accelerates formation of climate-relevant aerosols in boreal forests
Joutsensaari J, Yli-Pirilä P, Korhonen H, Arola A, Blande JD, Heijari J, Kivimäenpää M, Mikkonen S, Hao L, Miettinen P, Lyytikäinen-Saarenmaa, Faiola CL, Laaksonen A, Holopainen JK. 2015. Atmospheric chemistry and physics. 15: 12139-12157 -
Real-Time Chemical Composition Analysis of Particulate Emissions from Woodchip Combustion
Kortelainen Aki, Joutsensaari Jorma, Hao Liqing, Leskinen Jani, Tiitta Petri, Jaatinen Antti, Miettinen Pasi, Sippula Olli, Torvela Tiina, Tissari Jarkko, Jokiniemi Jorma, Worsnop Douglas R., Smith James N., Laaksonen Ari, Virtanen Annele. 2015. Energy and fuels. 29: 1143-1150 -
Contrasting responses of silver birch VOC emissions to short- and long-term herbivory
Maja Mengistu M, Kasurinen Anne, Yli-Pirilä Pasi, Joutsensaari Jorma, Klemola Tero, Holopainen Toini, Holopainen Jarmo K. 2014. Tree physiology. 34: 241-252 -
Controlled oxidation of iron nanoparticles in chemical vapour synthesis
Ruusunen Jarno, Ihalainen Mika, Koponen Tarmo, Torvela Tiina, Tenho Mikko, Salonen Jarmo, Sippula Olli, Joutsensaari Jorma, Jokiniemi Jorma, Lähde Anna. 2014. Journal of nanoparticle research. 16: 2270 -
Effective densities and fractal dimensions of particles emitted from small-scale combustion of different wood fuels
Leskinen Jani, Ihalainen Mika, Torvela Tiina, Kortelainen Miika, Lamberg Heikki, Tiitta Petri, Jakobi Gert, Grigonyte Julija, Joutsensaari Jorma, Sippula Olli, Tissari Jarkko, Virtanen Annele, Zimmermann Ralf, Jokiniemi Jorma. 2014. Environmental science and technology. 48: 13298-13306 -
Fine particle emissions in three different combustion conditions of a woodchip-fired appliance: Particulate physico-chemical properties and induced cell death
Leskinen J, Tissari J, Uski O, Virén A, Torvela T, Kaivosoja T, Lamberg H, Nuutinen I, Kettunen T, Joutsensaari J, Jalava PI, Sippula O, Hirvonen M-R, Jokiniemi J. 2014. Atmospheric environment. 86C: 129-139 -
Increased hygroscopicity of Arizona Test Dust seeds by secondary organic aerosol coating from Increased hygroscopicity of Arizona Test Dust seeds by secondary organic alfa-pinene ozonolysis
Keskinen Helmi, Kortelainen Aki-Matti, Jaatinen Antti, Yli-Pirilä Pasi, Joutsensaari Jorma, Romakkaniemi Sami, Hao Liqing, Torvela Tiina, Miettinen Pasi, Virtanen Annele, Worsnop Douglas R, Laaksonen Ari, Smith James N. 2014. Boreal environment research. 19: 182-190 -
Inhaled silica-coated TiO2 nanoparticles induced airway irritation, airflow limitation and inflammation in mice
Leppänen Maija, Korpi Anne, Mikkonen Santtu, Yli-Pirilä Pasi, Lehto Maili, Pylkkänen Lea, Wolff Henrik, Kosma Veli-Matti, Alenius Harri, Joutsensaari Jorma, Pasanen Pertti. 2014. Nanotoxicology. 2015; 9: 210-218 -
Particle capture efficiency of different-aged needles of Norway spruce under moderate and severe drought
Räsänen Janne, Holopainen Toini, Joutsensaari Jorma, Pasanen Pertti, Kivimäenpää Minna. 2014. Canadian journal of forest research-revue canadienne de recherche forestiere. 44: 831-835 -
The role of low volatile organics on secondary organic aerosol formation
Kokkola Harri, Yli-Pirilä Pasi, Vesterinen Milko, Korhonen Hannele, Keskinen Helmi, Romakkaniemi Sami, Hao Liqing, Kortelainen Aki, Joutsensaari Jorma, Worsnop Douglas R, Virtanen Annele, Lehtinen Kari E J. 2014. Atmospheric chemistry and physics. 14: 1689-1700 -
Acidic northern soils as sources of atmospheric nitrous acid (HONO)
Maljanen M, Yli-Pirilä P, Hytönen J, Joutsensaari J, Martikainen PJ. 2013. Soil biology and biochemistry. 67: 94-97 -
Bounce characteristics of α -pinene derived SOA particles with implications to physical phase
Kannosto Jonna, Yli-Pirilä Pasi, Hao Liqing, Leskinen Jani, Jokiniemi Jorma, Mäkelä Jyrki, Joutsensaari Jorma, Laaksonen Ari, Worsnop Douglas R, Keskinen Jorma, Virtanen Annele. 2013. Boreal environment research. 18: 329-340 -
Effects of species-specific leaf characteristics and reduced water availability on fine particle capture efficiency of trees
Räsänen Janne V, Holopainen Toini, Joutsensaari Jorma, Ndam Collins, Pasanen Pertti, Rinnan Åsmund, Kivimäenpää Minna. 2013. Environmental pollution. 183: 64-70 -
Estimating the Viscosity Range of SOA Particles Based on Their Coalescence Time
Pajunoja Aki, Malila Jussi, Hao Liqing, Joutsensaari Jorma, Lehtinen Kari E J, Virtanen Annele. 2013. Aerosol science and technology. 48: i-iv -
Evolution of nanoparticle composition in CLOUD in presence of sulphuric acid, ammonia and organics
Keskinen Helmi, Virtanen Annele, Joutsensaari Jorma, Tsagkogeorgas G, Duplissy J, Schobesberger S, Gysel M, Riccobono F, Slowik JG, Bianchi F, Yli-Juuti T, Lehtipalo K, Rondo L, Breitenlechner M, Kupc A, Almeida J, Amorim A, Dunne EM, Downard A, Ehrhart S, et al.. Teoksessa: DeMott, Paul J and O'Dowd, Colin D(toim.) , 2013. NUCLEATION AND ATMOSPHERIC AEROSOLS: 19th International Conference. s. 291-294. American Institute of Physics -
Evolution of particle composition in CLOUD nucleation experiments
Keskinen Helmi, Virtanen Annele, Joutsensaari Jorma, Tsagkogeorgas G, Duplissy J, Schobesberger S, Gysel M, Riccobono F, Slowik J G, Bianchi F, Yli-Juuti Taina, Lehtipalo Katrianne, Rondo L, Breitenlechner M, Kupc A, Almeida J, Amorim A, Dunne E M, Downard A J, Ehrhart S, Franchin A, et. al.. 2013. Atmospheric chemistry and physics. 13: 5587-5600 -
Fine particle capture efficiency of finnish forest trees, and their role in air pollution management
Räsänen Janne, Holopainen Toini, Pasanen Pertti, Joutsensaari Jorma, Kivimäenpää Minna. 2013. -
Gas-phase products and secondary organic aerosol formation from the ozonolysis and photooxidation of myrcene
Böge Olaf, Mutzel Anke, Iinuma Yoshiteru, Yli-Pirilä Pasi, Kahnt Ariane, Joutsensaari Jorma, Herrmann Hartmut. 2013. Atmospheric environment. 79: 553-560 -
Hygroscopicity of nucleated nanoparticles in CLOUD 7 experiments
Kim Jae-Seok, Keskinen Helmi, Vaattovaara Petri, Miettinen Pasi, Joutsensaari Jorma, Virtanen Annele. Teoksessa: DeMott, Paul J and O'Dowd, Colin D(toim.) , 2013. NUCLEATION AND ATMOSPHERIC AEROSOLS: 19th International Conference. s. 306-309. American Institute of Physics -
In vitro evaluation of pulmonary deposition of airborne volcanic ash
Lähde Anna, Gudmundsdottir Sigurbjörg Sæunn, Joutsensaari Jorma, Tapper Unto, Ruusunen Jarno, Ihalainen Mika, Karhunen Tommi, Torvela Tiina, Jokiniemi Jorma, Järvinen Kristiina, Gíslason Sigurður Reynir, Briem Haraldur, Gizurarson Sveinbjörn. 2013. Atmospheric environment. 70: 18-27 -
Long-term measurements of cloud droplet concentrations and aerosol-cloud interactions in continental boundary layer clouds
Ahmad Irshad, Mielonen Tero, Grosvenor Daniel P, Portin Harri J, Arola Antti, Mikkonen Santtu, Kühn Thomas, Leskinen Ari, Joutsensaari Jorma, Komppula Mika, Lehtinen Kari EJ, Laaksonen Ari, Romakkaniemi Sami. 2013. Tellus series b: chemical and physical meteorology. 65: 20138 -
Cloud Condensation Nucleus Production from Nucleation Events at a Semi-Rural Environment: Puijo station, Eastern Finland
Amar Hamed, Mika Komppula, Harri Portin, Ari Leskinen, Sami Romakkaniemi, Kari Lehtinen, James Smith, Jorma Joutsensaari and Ari Laaksonen:. 2012. -
Comparison of forest tree species in mitigation of particulate pollutants harmful to human health and surrounding environment
Räsänen J.V., Holopainen T., Joutsensaari J., Pasanen P., Kivimäenpää M.. 2012. -
Comparison of nanoparticle measurement instruments for occupational health applications
Leskinen Jani, Joutsensaari Jorma, Lyyränen Jussi, Koivisto Joonas, Ruusunen Jarno, Järvelä Merja, Tuomi Timo, Hämeri Kaarle, Auvinen Ari, Jokiniemi Jorma. 2012. Journal of nanoparticle research. 14: 718 -
Soil drought increases atmospheric fine particle capture efficiency of Norway spruce
Räsänen Janne, Yli-Pirilä Pasi, Holopainen Toini, Joutsensaari Jorma, Pasanen Pertti, Kivimäenpää Minna. 2012. Boreal environment research. 17: 21-30 -
A statistical proxy for sulphuric acid concentration
Mikkonen Santtu, Romakkaniemi Sami, Smith James N, Korhonen Hannele, Petäjä Tuukka, Plass-Duelmer Christian, Boy Michael, McMurry Peter H, Lehtinen Kari EJ, Joutsensaari Jorma, Hamed Amar, Mauldin III RL, Birmili Wolfram, Spindler Gerald, Arnold Frank, Kulmala Markku, Laaksonen Ari. 2011. Atmospheric chemistry and physics. 11: 11319-11334 -
Bounce behavior of freshly nucleated biogenic secondary organic aerosol particles
Virtanen Annele, Kannosto Jonna, Kuuluvainen H, Arffman A, Joutsensaari Jorma, Saukko E, Hao L, Yli-Pirilä Pasi, Tiitta Petri, Holopainen JK, Keskinen J, Worsnop DR, Smith JN, Laaksonen Ari. 2011. Atmospheric chemistry and physics. 11: 8759-8766 -
Characterization of New Particle Formation Events in Kuopio, Finland Based on a three-year analysis
Hamed A, Portin H, Leskinen M, Komppula M, Lehtinen KEJ, Romakkaniemi S, Smith JN, Joutsensaari J, Laaksonen A. 2011. -
Low-temperature aerosol flow reactor method for preparation of surface stabilized pharmaceutical nanocarriers
Torvela Tiina, Lähde Anna, Mönkäre Juha, Riikonen Joakim, Lehtinen Kari E.J., Järvinen Kristiina, Lehto Vesa-Pekka, Jokiniemi Jorma, Joutsensaari Jorma. 2011. Journal of aerosol science. 42: 645-656 -
Mass yields of secondary organic aerosols from the oxidation of α -pinene and real plant emissions
Hao Liqing, Romakkaniemi Sami, Yli-Pirilä Pasi, Joutsensaari Jorma, Kortelainen Aki, Kroll JH, Miettinen, Pasi, Vaattovaara Petri, Tiitta, Petri, Jaatinen Antti, Kajos MK, Holopainen JK, Heijari J, Rinne J, Kulmala Markku, Worsnop DR, Smith James & Laaksonen Ari. 2011. Atmospheric chemistry and physics. 11: 1367-1378 -
Meteorological and trace gas factors affecting the number concentration of atmospheric Aitken (Dp = 50 nm) particles in the continental boundary layer: parameterization using a multivariate mixed effects model
Mikkonen Santtu, Korhonen H,annele Romakkaniemi Sami, Smith James, Joutsensaari Jorma, Lehtinen Kari EJ, Hamed Amar, Breider TJ, Birmili W, Spindler G, Plass-Duelmer C, Facchini MC & Laaksonen Ari. 2011. Geoscientific model development. 4: 1-13 -
Nanosized TiO2 caused minor airflow limitation in the murine airways
Leppänen Maija, Korpi Anne, Miettinen Mirella, Leskinen Jani, Torvela Tiina, Rossi Elina, Vanhala Esa, Wolff Henrik, Alenius Harri, Kosma Veli-Matti, Joutsensaari Jorma, Jokiniemi Jorma, Pasanen Pertti. 2011. Archives of toxicology. 85: 827-839 -
On-Line Characterization of Morphology and Water Adsorption on Fumed Silica Nanoparticles
Keskinen Helmi, Romakkaniemi Sami, Jaatinen Antti, Miettinen Pasi, Saukko Erkka, Joutsensaari Jorma, Mäkelä Jyrki M., Virtanen Annele, Smith James N. & Laaksonen Ari. 2011. Aerosol science and technology. 45: 1441-1447 -
Statistical proxy for sulphuric acid concentration
Mikkonen Santtu, Romakkaniemi Sami, Smith James N, Korhonen Hannele, Petäjä Tuukka, Plass-Duelmer Christian, Boy Michael, McMurry Peter H, Lehtinen Kari EJ, Joutsensaari Jorma, Hamed Amar, Mauldin Lee R, Birmili Wolfram, Arnold Frank, Kulmala Markku, Laaksonen Ari. Teoksessa: Markku Kulmala, Jaana Bäck, Hanna K. Lappalainen and Tuomo Nieminen(toim.) , 2011. Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology ofAtmospheric Composition and Climate Change' Annual Workshop 18.¿20.5.2011. s. 261-264. -
The role of relative humidity in continental new particle formation
Hamed Amar, Korhonen Hannele, Sihto Sanna-Liisa, Joutsensaari Jorma, Järvinen Heikki, Petäjä Tuukka, Arnold Frank, Nieminen Tuomo, Kulmala Markku, Smith James, Lehtinen Kari EJ & Laaksonen Ari. 2011. Journal of geophysical research. 116: D03202, 12 PP -
Airway Exposure to Silica-Coated TiO2 Nanoparticles Induces Pulmonary Neutrophilia in Mice
Rossi EM, Pylkkänen L, Koivisto AJ, Vippola M, Jensen KA, Miettinen M, Sirola K, Nykäsenoja H, Karisola P, Stjernvall T, Vanhala E, Kiilunen M, Pasanen P, Mäkinen M, Hämeri K, Joutsensaari J, Tuomi T, Jokiniemi J, Wolff H, Savolainen K, Matikainen S & Alenius H. 2010. Toxicological sciences. 113: 422-433 -
An amorphous solid state of biogenic secondary organic aerosol particles
Virtanen A, Joutsensaari J, Koop T, Kannosto J, Yli-Pirilä P, Leskinen J, Mäkelä JM, Holopainen JK, Pöschl U, Kulmala M, Worsnop DR & Laaksonen A. 2010. Nature. 467: 824-827 -
Changes in the production rate of secondary aerosol particles in Central Europe in view of decreasing SO2 emissions between 1996 and 2006
Hamed A, Birmili W, Joutsensaari J, Mikkonen S, Asmi A, Wehner B, Spindler G, Jaatinen A, Wiedensohler A, Korhonen H, Lehtinen, KEJ, & Laaksonen A. 2010. Atmospheric chemistry and physics. 10: 1071-1091 -
EUCAARI ion spectrometer measurements at 12 European sites ¿ analysis of new particle formation events
Manninen HE, Nieminen T, Asmi E, Gagné S, Häkkinen S, Lehtipalo K, Aalto P, Vana M, Mirme A, Mirme S, Hõrrak U, Plass-Dülmer C, Stange G, Kiss G, Hoffer A, Törő N, Moerman M, Henzing B, de Leeuw G, Brinkenberg M, Kouvarakis GN, Bougiatioti A, Mihalopoulos N, O'Dowd C, Ceburnis D, Arneth A, Svenningsson B, Swietlicki E, Tarozzi L, Decesari S, Facchini MC, Birmili W, Sonntag A, Wiedensohler A, Boulon J, Sellegri K, Laj P, Gysel M, Bukowiecki N, Weingartner E, Wehrle G, Laaksonen A, Hamed A, J. 2010. Atmospheric chemistry and physics. 10: 7907-7927 -
Ion Mobility Distributions during the Initial Stages of New Particle Formation by the Ozonolysis of α -Pinene
Viitanen AK, Saukko E, Virtanen A, Yli-Pirilä P, Smith JN, Joutsensaari J & Mäkelä JM. 2010. Environmental science and technology. 44: 8917-8923 -
Low-temperature surface stabilization of gas phase produced polymeric peptide loaded nanoparticles
Torvela T, Lähde A, Joutsensaari J & Jokiniemi J. 2010. -
Mechanistic study on formation of coating on drug loaded nanoparticles in the gas phase
Torvela T, Lähde A, Jokiniemi J & Joutsensaari J. 2010. -
Meteorological and trace gas factors affecting the number concentration of atmospheric aitken (dp = 50 nm) particles in the continental boundary layer: parameterization using a multivariate mixed effects model.
Mikkonen Santtu, Korhonen Hannele, Romakkaniemi Sami, Smith James N, Joutsensaari Jorma, Lehtinen Kari EJ, Hamed Amar, Breider Tom J, Birmili Wolfram, Spindler Gerald, Plass-Duelmer Christian, Facchini Maria Christina, Laaksonen Ari. Teoksessa: Markku Kulmala, Hanna K. Lappalainen, Ari Asmi and Tuomo Nieminen(toim.) , 2010. Proceedings of 2010 EUCAARI Annual Meeting, Helsinki 22.11-26.11.2010. s. 211-215. -
NANOHEALTH - Engineered Nanoparticles: Synthesis, Characterization, Exposure and Health Hazards
Savolainen K, Joutsensaari J, Hämeri K, Jokiniemi J, Pasanen P, Alenius H, Norppa H, Tuomi T, Koivisto J, Miettinen M, Mäkinen M, Rossi E, Flanck G, Lindberg H & Pylkkänen L. 2010. - -
Roadside aerosol study using hygroscopic, organic and volatility TDMAs: Characterization and mixing state
Tiitta P, Miettinen P, Vaattovaara P, Joutsensaari J, Petäjä T, Virtanen A, Raatikainen T, Aalto P, Portin H, Romakkaniemi S, Kokkola H, Lehtinen KEJ, Kulmala M & Laaksonen A. 2010. Atmospheric environment. 44: 976-986 -
The Effect of Pollution on Newly-formed Particle Composition in Boreal Forest
Petri Vaattovaara, Tuukka Petäjä, Jorma Joutsensaari, Pasi Miettinen, Boris Zaprudin, Aki Kortelainen, Juha Heijari, Pasi Yli-Pirilä, Pasi Aalto, Doug R.Worsnop, Ari Laaksonen. 2010. -
The effects of soil drought and needle age on fine particle capture efficiency of Norway spruce (Picea abies)
Räsänen JV, Kivimäenpää M, Pasanen P, Joutsensaari J, Yli-Pirilä P & Holopainen T. 2010. -
Use of a micro-orifice impactor to study the impaction behaviour of an agglomerate
Ihalainen M., Lind T., Joutsensaari J., Torvela T., Jokiniemi J., Güntay S.. 2010. -
A comparison of new particle formation events in the boundary layer at three different sites in Europe
Jaatinen A, Hamed A, Joutsensaari J, Mikkonen S, Birmili W, Wehner B, Spindler G, Wiedensohler A, Decesari S, Mircea M, Facchini MC, Junninen H, Kulmala M, Lehtinen KEJ, Laaksonen A. 2009. Boreal environment research. 14: 481-498 -
Development of a highly controlled gas-phase nanoparticle generator for inhalation exposure studies
Miettinen M, Riikonen J, Tapper U, Backman U, Joutsensaari J, Auvinen A, Lehto VP & Jokiniemi J. 2009. Human and experimental toxicology. 28: 413-419 -
Development of a highly controlled gasphase nanoparticle generator for inhalation exposure studies
Miettinen M, Riikonen J, Tapper U, Backman U, Joutsensaari J, Auvinen A, Lehto VP, Jokiniemi J. 2009. Human and experimental toxicology. 28: 413-419 -
Increased coagulation scavenging does not explain suppression of nucleation events at high relative humidities?
Hamed A, Korhonen H, Sihto S-L, Joutsensaari J, Järvinen H, Lehtinen K, Kulmala M, Laaksonen A. Teoksessa: (toim.) , 2009. Nucleation and Atmospheric Aerosols 18th International Conference. s. 464-467. ICPF ASCR, v.v.i. and CAS -
Measurements of humidified particle number size distributions in a Finnish boreal forest: derivation of hygroscopic particle growth factors
Birmili W, Schwirn K, Nowak A, Petäjä T, Joutsensaari J, Rose D, Wiedensohler A, Hämeri K, Aalto P, Kulmala M, Boy M. 2009. Boreal environment research. 14: 458-480 -
New particle formation from the oxidation of direct emissions of pine seedlings
Hao LQ, Yli-Pirilä P, Tiitta P, Romakkaniemi S, Vaattovaara P, Kajos MK, Rinne J, Heijari J, Kortelainen A, Miettinen P, Kroll JH, Holopainen JK, Smith JN, Joutsensaari J, Kulmala M, Worsnop DR, Laaksonen A. 2009. Atmospheric chemistry and physics. 9: 8121-8137 -
Nucleation events in a polluted continental boundary layers as a source of CCN
Hamed A, Joutsensaari J, Mikkonen S, Wehner B, Birmili W, Tuch T, Spindler G, Wiedensohler A, Decesari S, Mircea M, Fuzzi S, Facchini MC, Laaksonen A. Teoksessa: Kulmala M, Bäck J, Nieminen T, Lauri A(toim.) , 2009. Proceedings of the Finnish Center of Excellence and Graduate School in Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change Annual Workshop. s. 121-124. -
Roadside aerosol study using hygroscopic, organic and volatility TDMAs
Tiitta P, Petäjä T, Miettinen P, Vaattovaara P, Joutsensaari J, Virtanen A, Aalto P, Portin H, Lehtinen KEJ, Kulmala M, Laaksonen A. Teoksessa: (toim.) , 2009. Nucleation and Atmospheric Aerosols 18th International Conference. s. 849-852. ICPF ASCR, v.v.i. and CAS -
Roadside ufp study using hygroscopic, organic and volatility tdmas
Tiitta P, Miettinen P, Vaattovaara P, Joutsensaari J, Petäjä T, Virtanen A, Aalto P, Portin H, Lehtinen KEJ, Kulmala M, Laaksonen A. Teoksessa: Kulmala M, Bäck J, Nieminen T, Lauri A(toim.) , 2009. Proceedings of the Finnish Center of Excellence and Graduate School in Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change Annual Workshop. s. 410-414. -
SOA formation by ozonolysis of biogenic VOCs emitted from biotic stressed boreal trees
Joutsensaari J, Yli-Pirilä P, Blande JD, Heijari J, Holopainen JK, Worsnop DR, Laaksonen A. Teoksessa: (toim.) , 2009. Nucleation and Atmospheric Aerosols 18th International Conference. s. 309-312. ICPF ASCR, v.v.i. and CAS -
Statistical analysis of factors affecting to the number concentration of atmospheric aerosols in two polluted areas
Mikkonen S, Lehtinen KEJ, Romakkaniemi S, Joutsensaari J, Hamed A, Laaksonen A. Teoksessa: Kulmala M, Bäck J, Nieminen T, Lauri A(toim.) , 2009. Proceedings of the Finnish Center of Excellence and Graduate School in Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change Annual Workshop. s. 303-306. -
The applicability of three different nucleation event day prediction methods at three measurement sites in Europe
Jaatinen A, Hamed A, Joutsensaari J, Mikkonen S, Birmili W, Wehner B, Spindler G, Wiedensohler A, Decesari S, Mircea M, Facchini MC, Junninen H, Kulmala M, Lehtinen KEJ, Laaksonen A. Teoksessa: Kulmala M, Bäck J, Nieminen T, Lauri A(toim.) , 2009. Proceedings of the Finnish Center of Excellence and Graduate School in Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change Annual Workshop. s. 151-155. -
The evolution of nucleation- and Aitken-mode particle compositions in a boreal forest environment during clean and pollution-affected new-particle formation events
Vaattovaara P, Petäjä T, Joutsensaari J, Miettinen P, Zaprudin B, Kortelainen A, Heijari J, Yli-Pirilä P, Aalto P, Worsnop DR, Laaksonen A. 2009. Boreal environment research. 14: 662-682 -
The plant flow chamber simulation using a condensational growth model
Vesterinen M, Lehtinen KEJ, Korhonen H, Joutsensaari J. Teoksessa: Kulmala M, Bäck J, Nieminen T, Lauri A(toim.) , 2009. Proceedings of the Finnish Center of Excellence and Graduate School in Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change". Annual Workshop". s. 462-465. -
A comparison of new particle formation events in Eastern Germany and in Northern Italy on a three-year analysis
Hamed A, Mikkonen S, Joutsensaari J, Lehtinen KEJ, Jaatinen A, Wehner B, Birmili W, Wiedensohler A, Cavalli F, Decesari S, Mircea M, Fuzzi S, Facchini MC, Laaksonen A. 2008. Report series in aerosol science. : 37-39 -
Determination of the characteristics of ultrafine particles and air ions from road-side measurements
Tiitta P, Miettinen P, Vaattovaara P, Joutsensaari J, Laaksonen A, Aalto P, Kulmala M. 2008. Report series in aerosol science. : 256-261 -
Finding factors affecting to the number concentration of atmospheric aerosol with advanced statistical methods
Mikkonen S, Lehtinen KEJ, Hamed A, Joutsensaari J, Laaksonen A. Teoksessa: (toim.) , 2008. NOSA Aerosol Symposium. s. 77-78. -
Formation of secondary organic aerosols by ozonolysis of plant-released volatiles
Joutsensaari J, Yli-pirilä P, Heijari J, Pinto DM, Loivamäki M, Vuorinen T, Miettinen P, Tiiva P, Nerg A-M, Raatikainen T, Rautiainen J, Kroll J, Kajos M, Ehn M, Worsnop DR, Holopainen JK, Laaksonen A. 2008. Report series in aerosol science. : 61-63 -
New particle formation events in Northern Italy based on a three-year analysis
Mikkonen S, Hamed A, Lehtinen KEJ, Joutsensaari J, Jaatinen A, Sogacheva L, Facchini MC, Laaksonen A. Teoksessa: Markku Kulmala, Jaana Bäck, and Martta Salonen(toim.) , 2008. Proceedings of the Nordic Center of Excellence BACCI ( Biosphere-Atmosphere-Cloud-Climate Interactions) and the Finnish Center of Excellence``Research Unit on Physics, Chemistry, and Biology of Atmospheric Composition and Climate Change``. s. 158-161. -
Nucleation events in Italy, Germany and Finland: a comparative study
Hamed A, Jaatinen A, Joutsensaari J, Birmili W, Wehner B, Wiedensohler A, Facchini MC, Decesari S, Mircea M, Junninen H, Kulmala M, Lehtinen KEJ, Laaksonen A. Teoksessa: (toim.) , 2008. NOSA Aerosol Symposium. s. 39-40. -
Overview of organic TDMA studies during period 2002-2007
Vaattovaara P, Joutsensaari J, Laaksonen A. 2008. Report series in aerosol science. : 262-269 -
The role of VOC oxidation products in continental new particle formation
Laaksonen A, Kulmala M, O`Dowd CD, Joutsensaari J, Vaattovaara P, Mikkonen S, Lehtinen KEJ, Sogacheva L, Dal Maso M, Aalto P, Petäjä T, Sogachev A, Yoon YJ, Lihavainen H, Nilsson D, Facchini MC. 2008. Atmospheric chemistry and physics. 8: 2657-2665 -
A comparison of new particle formation at different sites in the European boundary layer
Hamed A, Jaatinen A, Wehner B, Birmili W, Wiedensohler A, Cavalli F, Decesari S, Mircea M, Fuzzi S, Facchini MC, Dal Maso M, Junninen H, Riipinen I, Kulmala M, Joutsensaari J, Lehtinen KEJ, Laaksonen A. Teoksessa: (toim.) , 2007. NOSA Aerosol Symoposium. Conference proceedings. s. 32-33. Nordic Society for Aerosol Research -
Controlled synthesis of nanoparticles for inhalation exposure studies
Miettinen MA, Suonmaa V, Tapper U, Backman U, Joutsensaari J, Auvinen A, Jokiniemi JK. Teoksessa: (toim.) , 2007. NOSA Aerosol Symposium. Conference proceedings. s. 74-75. Nordic Society for Aerosol Research -
Effects of atmospheric ozone on biogenic volatile organic compounds: an atmospheric and ecological perspective
Pinto DM, Joutsensaari J, Tiiva P, Miettinen P, Blande J, Dong W-X, Nerg AM, Laaksonen A, Holopainen JK. Teoksessa: Xiang H, Akieh MN, Vuorio A-M, Jokinen T, Sillanpää M(toim.) , 2007. Eighth Finnish Conference of Environmental Sciences. s. 131-134. Finnish Society for Environmental Sciences -
Multivariate mixed effects regression model in the analysis of number concentration of 50NM particles
Mikkonen S, Lehtinen KEJ, Hamed A, Joutsensaari J, Laaksonen A. Teoksessa: (toim.) , 2007. NOSA Aerosol Symposium. Conference proceedings. s. 76-77. Nordic Society for Aerosol Research -
Nucleation and growth of new particles in Po Valley, Italy
Hamed A, Joutsensaari J, Mikkonen S, Sogacheva L, Dal Maso M, Kulmala M, Cavalli F, Fuzzi S, Facchini MC, Decesari S, Mircea M, Lehtinen KEJ, Laaksonen A. 2007. Atmospheric chemistry and physics. 7: 355-376 -
Nucleation events in Melpitz, Germany, and Po Valley, Italy: similarities and differences
Hamed A, Lehtinen KEJ, Joutsensaari J, Wehner B, Birmili W, Wiedensohler A, Cavalli F, Decesari S, Mircea M, Fuzzi S, Facchini MC, Laaksonen A. Teoksessa: O¿Dowd CD, Wagner P(toim.) , 2007. Nucleation and Atmospheric Aerosols. 17th International conference. ICNAA 2007. s. 240-244. Springer -
Road-side measurements of aerosol and ion number size distributions:a comparison with remote site measurements
Tiitta P, Miettinen P, Vaattovaara P, Laaksonen A, Joutsensaari J, Hirsikko A, Aalto P, Kulmala M. 2007. Boreal environment research. 12: 311-321 -
Road-side measurements of air ions
Tiitta P, Miettinen P, Vaattovaara P, Laaksonen A, Joutsensaari J, Hirsikko A, Aalto P, Kulmala M. Teoksessa: (toim.) , 2007. NOSA Aerosol Symposium. Conference proceedings. s. 102-103. Nordic Society for Aerosol Research -
Secondary organic aerosol formation by ozonolysis of volatiles emitted from trees
Joutsensaari J, Yli-Pirilä P, Heijari J, Holopainen JK, Miettinen P, Raatikainen T, Rautiainen J, Worsnop DR, Laaksonen A. Teoksessa: (toim.) , 2007. NOSA Aerosol Symposium. Conference proceedings. s. 38-39. Nordic Society for Aerosol Research -
The effects of increasing atmospheric ozone on biogenic monoterpene profiles and the formation of secondary aerosols
Pinto DM, Tiiva P, Miettinen P, Joutsensaari J, Kokkola H, Nerg A-M, Laaksonen A, Holopainen JK. 2007. Atmospheric environment. 41: 4877-4887 -
The role of VOC oxidation products in continental new particle formation
Laaksonen A, Kulmala M, O'Dowd CD, Joutsensaari J, Vaattovaara P, Mikkonen S, Lehtinen KEJ, Sogacheva L, Dal Maso M, Aalto P, Petäjä T, Sogachev A, Yoon YJ, Lihavainen H, Nilsson D, Facchini MC, Cavalli F, Fuzzi S, Hoffmann T, Arnold F, Hanke M, Sellegri K, Umann B, Junkermann W, Coe H, Allan JD, Rami Alfarra M, Worsnop DR, Riekkola M-L, Hyötyläinen T, Viisanen Y. 2007. ATMOSPHERIC CHEMISTRY AND PHYSICS DISCUSSIONS. 7: 7819-7841 -
A new method for studying vapor adsorption on nanoparticles
Hiltunen LJ, Vaattovaara P, Joutsensaari J, Laaksonen A. 2006. Report series in aerosol science. 81A: 173-175 -
A novel method for measuring vapor adsorption on nanoparticles
Hiltunen LJ, Vaattovaara P, Joutsensaari J, Laaksonen A. Teoksessa: Vehkamäki H, Bergman T, Julin J, Salonen M, Kulmala M(toim.) , 2006. NOSA 2006 Aerosol symposium, combined with the X Finnish National Aerosol Symposium. s. 95-97. -
An apparatus for studying vapor adsorption on nanoparticles
Hiltunen LJ, Vaattovaara P, Joutsensaari J, Laaksonen A. Teoksessa: (toim.) , 2006. 7th International Aerosol Conference. s. 389-390. AAAR -
Characterization of new particle formation events in highly polluted area
Hamed A, Joutsensaari J, Cavalli F, Facchini MC, Fuzzi S, Laaksonen A. Teoksessa: (toim.) , 2006. 7th International Aerosol Conference. s. 591-592. AAAR -
Correlation of nucleation events with environmental variables in highly polutted area, Po Valley, Italy
Hamed A, Joutsensaari J, Mikkonen S, Facchini CM, Laaksonen A. Teoksessa: Vehkamäki H, Bergman T, Julin J, Salonen M, Kulmala M(toim.) , 2006. NOSA 2006 Aerosol symposium, combined with the X Finnish National Aerosol Symposium. s. 86-89. -
Determination of the characteristics of ultrafine particles from road-side measurements
Tiitta P, Miettinen P, Vaattovaara P, Joutsensaari J, Laaksonen A, Aalto P, Kulmala M. 2006. Report series in aerosol science. : 609-611 -
Determination of the chemical characteristics of particles from road-side measurements
Tiitta P, Miettinen P, Vaattovaara P, Joutsensaari J, Laaksonen A, Aalto P, Kulmala M. Teoksessa: (toim.) , 2006. 7th International Aerosol Conference. s. 1812-1813. AAAR -
Estimation of flue gas and ambient air mixing rate with the help of IR-visualisation
Turrek T, Joutsensaari J, Jokiniemi J. Teoksessa: (toim.) , 2006. 7th International Aerosol Conference. s. 438-439. AAAR -
Evidence for marine secondary organic contribution to newly-formed nanometer-sized particles formation
Vaattovaara P, Huttunen PE, Yoon YJ, Joutsensaari J, Lehtinen KEJ, O'Dowd CD, Laaksonen A. Teoksessa: Vehkamäki H, Bergman T, Julin J, Salonen M, Kulmala M(toim.) , 2006. NOSA 2006 Aerosol symposium, combined with the X Finnish National Aerosol Symposium. s. 394-398. -
Formation of secondary organic aerosols by ozonolysis of plant-released volatiles
Joutsensaari J, Loivamäki M, Vuorinen T, Miettinen P, Pinto DM, Tiiva P, Nerg A-M, Holopainen JK, Laaksonen A. Teoksessa: Vehkamäki H, Bergman T, Julin J, Salonen M, Kulmala M(toim.) , 2006. NOSA 2006 Aerosol symposium, combined with the X Finnish National Aerosol Symposium. s. 118-121. -
Marine secondary organic contribution to ultrafine particles
Vaattovaara P, Huttunen PE, Yoon YJ, Joutsensaari J, Lehtinen KEJ, O'Dowd CD, Laaksonen A. 2006. Report series in aerosol science. 81 A: 631-633 -
Modelling the size distribution of 3-50 Nm particles with generalized models
Mikkonen S, Lehtinen KEJ, Hamed A, Joutsensaari J, Laaksonen A. Teoksessa: Vehkamäki H, Bergman T, Julin J, Salonen M, Kulmala M(toim.) , 2006. NOSA 2006 Aerosol symposium, combined with the X Finnish National Aerosol Symposium. s. 246-48. -
Nucleation and growth of new particles in Po Valley, Italy
Hamed A, Joutsensaari J, Mikkonen S, Sogacheva L, Dal Maso M, Kulmala M, Cavalli F, Fuzzi S, Facchini MC, Decesari S, Mircea M, Lehtinen KEJ, Laaksonen A. 2006. ATMOSPHERIC CHEMISTRY AND PHYSICS DISCUSSIONS. 6: 9603-9653 -
On the hygroscopic growth of ammoniated sulfate particles of non-stoichiometric composition
Kokkola H, Joutsensaari J, Hyppönen N, Lehtinen KEJ, Laaksonen A. 2006. ATMOSPHERIC CHEMISTRY AND PHYSICS DISCUSSIONS. 6: 1-16 -
Particle formation by ozonolysis of inducible plant volatiles
Miettinen P, Holopainen J, Joutsensaari J, Laaksonen A. 2006. Report series in aerosol science. 81B: 398-399 -
Road-side measurements of air ions
Tiitta P, Miettinen P, Vaattovaara P, Laaksonen A, Joutsensaari J, Hirsikko A, Aalto P, Kulmala M. Teoksessa: Vehkamäki H, Bergman T, Julin J, Salonen M, Kulmala M(toim.) , 2006. NOSA 2006 Aerosol Symposium, combined with the X Finnish National Aerosol Symposium. s. 380-381. -
The composition of nucleation and Aitken modes particles during coastal nucleation events: evidence for marine secondary organic contribution
Vaattovaara P, Huttunen PE, Yoon YJ, Joutsensaari J, Lehtinen KEJ, O'Dowd CD, Laaksonen A. 2006. Atmospheric chemistry and physics. 6: 4601-4616 -
Using discriminant analysis as a nucleation event classification method
Mikkonen S, Lehtinen KEJ, Hamed A, Joutsensaari J, Facchini MC, Laaksonen A. 2006. Atmospheric chemistry and physics. 6: 5549-5557 -
A method for detecting the presence of organic fraction in nucleation mode sized particles
Vaattovaara P, Räsänen M, Kühn T, Joutsensaari J, Laaksonen A. 2005. Atmospheric chemistry and physics. 5: 3277-3287 -
Cloud condensation nucleus production from nucleation events at a highly polluted region
Laaksonen A, Hamed A, Joutsensaari J, Hiltunen L, Cavalli F, Junkermann W, Asmi A, Fuzzi S, Facchini MC. 2005. Geophysical research letters. 32: L06812 -
Effects of SO2 oxidation on ambient aerosol growth in water and ethanol vapours
Petäjä T, Kerminen VM, Hämeri K, Vaattovaara P, Joutsensaari J, Junkermann W, Laaksonen A, Kulmala M. 2005. Atmospheric chemistry and physics. 5: 767-779 -
Nanoparticle formation by ozonolysis of inducible plant volatiles
Joutsensaari J, Loivamäki M, Vuorinen T, Miettinen P, Nerg A-M, Holopainen JK, Laaksonen A. 2005. Atmospheric chemistry and physics. 5: 1489-1495 -
Ion production rate in a boreal forest based on ion, particle and radiation measurements
Laakso L, Petäjä T, Lehtinen KEJ, Kulmala M, Paatero J, Hõrrak U, Tammet H, Joutsensaari J. 2004. Atmospheric chemistry and physics. : 1933-1943 -
Overview of the field measurement campaign in Hyytiälä, August 2001 in the framework of the EU project OSOA
Boy M, Petäjä T, Dal Maso M, Rannik Ü, Rinne J, Aalto P, Laaksonen A, Vaattovaara P, Joutsensaari J, Hoffmann T, Warnke J, Apostolaki M, Stephanou EG, Tsapakis M, Kouvarakis A, Pio C, Carvalho A, Römpp A, Moortgat G, Spirig C, Guenther A, Greenberg J. 2004. Atmospheric chemistry and physics. 4: 657-678 -
Time-resolved growth behavior of acid aerosols in ethanol vapor with a tandem-DMA technique
Joutsensaari J, Toivonen T, Vaattovaara P, Vesterinen M, Vepsäläinen J, Laaksonen A. 2004. Journal of aerosol science. : 851-867 -
Detection of organic acid and ammonium bisulfate particles with an organic tandem differential mobility analyzer
Joutsensaari J, Toivonen T, Vesterinen M, Vaattovaara P, Vepsäläinen J, Laaksonen A. Teoksessa: (toim.) , 2003. Abstracts of the European Aerosol Conference 2003. s. S1447-S1448. -
Otdma study of ultrafine particle composition at mace head
Vaattovaara P, Joutsensaari J, Toivonen T, Laaksonen A. Teoksessa: (toim.) , 2003. Abstracts of the European Aerosol Conference 2003. s. S621-S622. -
Overview of the field measurement campaign in Hyytiälä, August 2001 in the framework of the EU project OSOA
Boy M, Petäjä T, Dal Maso M, Rannik Ü, Rinne J, Aalto P, Laaksonen A, Vaattovaara P, Joutsensaari J, Hoffmann T, Warnke J, Apostolaki M, Stephanou EG, Tsapakis M, Kouvarakis A, Pio C, Carvalho A, Römpp A, Moortgat G, Spirig C, Guenther A, Greenberg J. 2003. ATMOSPHERIC CHEMISTRY AND PHYSICS DISCUSSIONS. 3: 3769-3831 -
Detection of organic acid particles with an organic tandem differential mobility analyzer
Joutsensaari J, Vaattovaara P, Toivonen T, Vesterinen M, Vepsäläinen J, Laaksonen A. Teoksessa: (toim.) , 2002. Program Conference Proceedings NOSA Aerosol Symposium. s. 33-34. Nordic Society for Aerosol Research -
Study of toluene oxidation products with and without ammonium sulfate seed aerosol using the organic tandem differential mobility analyzer (OTDMA)
Vaattovaara P, Joutsensaari J, Laaksonen A. Teoksessa: Wang C-S(toim.) , 2002. Sixth International Aerosol Conference 2002 IAC. Vol. 2. s. 849-850. Chinese Association for Aerosol Research in Taiwan -
The composition of secondary organic aerosols: TDMA growth factor analysis using UNIFAC
Vaattovaara P, Joutsensaari J, Laaksonen A. Teoksessa: (toim.) , 2002. Program Conference Proceedings NOSA Aerosol Symposium. s. 81-82. Nordic Society for Aerosol Research -
A novel tandem differential mobility analyzer with organic vapor treatment of aerosol particles
Joutsensaari J, Vaattovaara P, Vesterinen M, Hämeri K, Laaksonen A. 2001. Atmospheric chemistry and physics. 1: 51-60 -
Construction of organic tandem differential mobility analyzer
Joutsensaari J, Vaattovaara P, Laaksonen A. Teoksessa: (toim.) , 2001. Abstracts of the European Aerosol Conference 2001, EAC 2001 European Aerosol Conference 2001. s. S911-S912. -
Determination of the organic content of atmospheric aerosols using a TDMA
Vaattovaara P, Joutsensaari J, Laaksonen A. Teoksessa: (toim.) , 2001. Abstracts of the European Aerosol Conference 2001, EAC 2001 European Aerosol Conference 2001. s. S173-S174. -
Organic tandem differential mobility analyzer
Joutsensaari J, Vaattovaara P, Laaksonen A, Väkevä M, Hämeri K. Teoksessa: (toim.) , 2000. Abstracts of the European Aerosol Conference. s. 775-776. Pergamon