A new network to measure ultrafine particles

Source: W. Birmili/TROPOS

Ultrafine aerosol particles (Particles with diameter < 100 nm) are associated with adverse health effects, particularly respicatory and cardiovascular disease.

GUAN is a cooperative network that explores the scientific basis for a health-related and climate-relevant assessment of ultrafine atmospheric particles.

The key measurement parameters are the particle number size distribution and the soot particle mass concentration (BC).

At present, the network comprises 17 atmospheric research and measurement stations. The data are used nor only for the analysis of ultrafine particle concentrations and processes, but also to validata atmospheric dispersion models and statistical forecast models. The data may also serve, in the future, as a critical data base for a possible regulation of ultrafine particles and soot within the framework of EU air quality regulations.

For up-to-date information on GUAN, please visit GUAN's wiki page: wiki.tropos.de/index.php/GUAN.

Views of selected GUAN measurement sites

  • Source: W. Birmili/TROPOS

  • Source: W. Birmili/TROPOS

  • Source: W. Birmili/TROPOS

  • Source: Olaf Bath/UBA

  • Source: Harald Flentje/DWD

  • Source: Ludwig Ries/UBA

Partners involved in the operation of GUAN:

DWD|German Weather Service|Hohenpeißenberg
GAA|Labour Inspectorate of Lower Saxony|Hildesheim
HMGU|Helmholtz-Zentrum München, Institute of Epidemiology II|Neuherberg
IUTA|Institute of Energy and Environmental Technology|Duisburg
LANUV|Agency for Nature Protection, the Environment, and Customer Protection in Northrhine-Westfalia|Recklinghausen
LfULG|Saxon State Agency for Environment, Agriculture and Geology|Dresden
TROPOS|Leibniz Institute for Tropospheric Research|Leipzig
UA-WZU|Augsburg University|Augsburg
UBA|Federal Environment Agency|Langen and measurement sites