Our working group 'Tropospheric Aerosol' investigates physical and optical properties of aerosol particles under laboratory and field conditions.
We are working towards a better understanding of aerosol-reletaed processes, quantify spatial and temporal trends, and evaluate human exposure to ultrafine particles and soot in urban areas.
Process studies of direct and indirect radiative forcing
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Spatial and temporal trends of tropospheric aerosols
![](/fileadmin/_processed_/7/c/csm_Raum_Zeit_Trends_teaser_MH_20131216_0db87bb837.jpg)
Ultrafine particles and air quality
![Source: Birmili/TROPOS](/fileadmin/_processed_/7/5/csm_urban_air_quality_teaser__2__a1209c33df.jpg)
Centre of competence for physical aerosol characterisation
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