Research interests
The combustion aerosol, a dynamic system of both particles and gases, affected by both emissions, chemistry, aerosol physics and meteorology, is in focus. Traffic emissions of ultrafine particles, i.e. below 100 nm in diameter, have been quantified by a new method. Both experimental methods and modelling tools are used in this research, at present focus is onto theoretical methods.
Selected publications
- Janhäll S. and Hallquist M.: A Novel Method for Determination of Size-Resolved, Submicrometer Particle Traffic Emission Factors, Environmental Science & Technology, Vol. 39, Issue 19, 2005
- Janhäll S., Olofson K.F.G., Andersson, P., Pettersson, J.B.C. and Hallquist M.: Evolution of the urban aerosol during winter temperature inversion episodes, Atmospheric Environment, Vol. 40, pp 5355-5366, 2006
- Gatari M. J., Boman J., Wagner A., Janhäll S. and Isakson J.: Assessment of inorganic content of PM2.5 particles sampled in a rural area north-east of Hanoi, Vietnam, Science of the Total Environment, Vol. 368, pp 675-685, 2006
- Svane M., Janhäll S., Hagström M., Hallquist M. and Pettersson J.B.C.: On-line Alkali analysis of individual aerosol particles in urban air, Atmospheric Environment, Vol. 39, pp 6919-6930, 2005
- Janhäll S. The Urban Aerosol - Sources and Atmospheric Processes, Doctoral Thesis, 2005 download abstract
- Janhäll S., Jonson Å.M., Molnar P., Svensson E.A. and Hallquist M.: Size Resolved Traffic Emission Factors of Submicrometer Particles., Atmospheric Environment, Vol. 38, Issue 26, pp 4331-4340, 2004
- Janhäll S., Molnar P. and Hallquist M.: Vertical gradients of air pollutants at the Gustavii Cathedral in Göteborg, Sweden, Atmospheric Environment, Vol. 37, Issue 2, pp 209-217, 2003
- Molnar P., Janhäll S. and Hallquist M.: Roadside measurements of fine and ultrafine particles at a major road north of Gothenburg, Atmospheric Environment, Vol. 36, Issue 25, pp 4115-4123, 2002
- Andersson-Sköld Y. and Janhäll S.: Simulations of ozone formation from different emission sources in Sweden. Acid Reign'95?, Journal of Water, Air and Soil, Vol. 85, Issue 4, pp 2045-2050, 1995
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