Sökning: "Vapour particle distribution"
Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Vapour particle distribution.
1. Development and Evaluation of a Denuder-Filter System Designed for Sampling Diisocyanate Aerosols
Sammanfattning : There are many occupational environments in which isocyanates or PUR-products are used, produced or processed. During these operations there is always a risk of isocyanate exposure, which may lead to severe health problems. Isocyanates principally affect the respiratory system and they are the main cause of occupational asthma. LÄS MER
2. Numerical simulations of the isotopic composition of stratospheric water vapour and methane
Sammanfattning : The middle atmosphere is an important area of the Earth's atmosphere, but our understanding of the dynamical and chemical processes in that region is still limited. Water vapour and methane both fulfil the requirements for tracers due to their long lifetimes and have frequently been used to study dynamical processes. LÄS MER
3. Analysis of Arctic ice cloud properties using in-situ and remote sensing measurements
Sammanfattning : Cirrus clouds play an important role in the radiation balance of the atmosphere as theycan have a warming and cooling effect. The resulting net radiation effect depends ontheir micro- and macrophysical properties such as particle size, shape, and numberconcentration. LÄS MER
4. Hygroscopic Properties of Atmospheric Aerosol Particles in Various Environments
Sammanfattning : Atmospheric aerosol particles affect our living environment in many ways. Their effects are influenced by the interaction between the aerosol particles and the ubiquitous water vapour. The number-size distribution is a primary important parameter for aerosol particles and can be measured using the differential mobility particle sizer (DMPS). LÄS MER
5. Fine and Ultrafine Particles from Combustion Sources - Investigations with In-situ Techniques
Sammanfattning : Fine airborne particles are associated with adverse health effects in the human population. The aim of this research was to develop and evaluate methods for in-situ characterisation of fine and ultrafine particles and to determine their deposition in the human airways. LÄS MER