Community Research and Development Information Service - CORDIS

Frequency of aerosol particle formation in boreal forest site

Continuous measurements (every 10 min) of submicron aerosol number size distribution shows ca 50 days per year with clearly detectable aerosol particle formation events. Almost 20% of those events will continue sufficiently long to produce particles with diameter over 80nm, which can be counted to be cloud condensation nuclei (CCN). The aerosol formation is connected with physics, chemistry, meteorology and biology. The result can be used as a part of global models for comparison purposes and input parameters.

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University of Helsinki
Siltavuorenpenger 20 D
00014 Helsinki
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