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New research results change the understanding of atmospheric aerosol properties and climate effects
Date:10/14/2010

st in Hyytil, Finland.

The research results were achieved using a new method developed at Tampere University of Technology by Dr Annele Virtanen.

-The method is based on collecting particles by impaction on metal substrates. If the particles are solid, they bounce off the surface whereas liquid particles do not bounce but adhere to the substrate, says Virtanen.

The results will re-direct the atmospheric fine particle research

The new findings will change many features of the understanding of particle behavior in the atmosphere as the physical state of the particles influences their ability to absorb and release water and other gaseous compounds, as well as their ability to act as cloud or ice nuclei. The solid state affects also the aging and lifetime of the chemical components of air particulate matter by reducing the rates of diffusion and reaction in the particles.

-There have been some discrepancies in previous research results related to SOA particle characteristics, which might be explained by the solid state of the particles. Without doubt our results will re-direct the SOA related research worldwide, comments Professor Ari Laaksonen from Finnish Meteorological Institute.


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Contact: Dr. Annele Virtanen
annele.virtanen@tut.fi
358-401-981-002
Tampere University of Technology
Source:Eurekalert

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