The ACTRIS Czech Republic (ACTRIS-CZ) large research infrastructure (LRI) forms a unique platform for the long-term background air quality monitoring and research closely related to climate, environmental and health issues qualified as society challenges. 

ACTRIS addresses the scope of integrating state-of-the-art European ground-based stations for long-term observations of aerosols, clouds and short lived gases. ACTRIS represents a fundamental step towards the establishment of the atmospheric component of the Integrated European Observing System and a clear upgrade in services offered to users.