cais-ecac success stories citytree

Innovation type
Success story
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Keywords: Quality control (QC), new technology, prototypes, air quality


Centre for Aerosol In Situ - European Centre for Aerosol Calibration (CAIS-ECAC)

Collaborative practices can be taken from industrial research projects carried out thanks to the support of CAIS-ECAC.

Green City Solutions GmbH has developed movable moss walls, so-called “CityTrees” with the aim of improving air quality.

The airflow passes through the CityTrees, passing through the moss, which acts as a filter. In addition to humidifying and cooling the air, moss separates fine and ultrafine dust particles. A measurement campaign lasting several days was organized in Germany to determine the efficiency of the filter and then test it within the CAIS-ECAC facility managed by TROPOS



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