One of the air quality monitoring stations run by the Seoul Metropolitan Quality Research Institute of Public Health and Environment. The station is equipped with an Aero-Laser AL4021 formaldehyde monitor and an AL2021 H2O2 monitor.

The meteorological observatory on the Hohenpeissenberg (1000 m a.s.l.) in southern Germany is the oldest mountain observatory worldwide. It has been collecting data sine 1781. Since 1993 the Deutscher Wetterdienst (DWD) is a member of the Global Atmosphere Watch (GAW) climate monitoring programme of the world meteorological organisation (WMO). Since 1995 the observatory has been involved in measuring trace gases, aerosols and chemical substances contained in rain.
Those data and its scientific interpretation is the base for a better understanding of chemical and meteorological processes in our atmosphere, especially with regards to the climate change.

Equipment rack with an Aero-Laser AL5001 CO-monitor amongst many other instruments at the GAW station on Hohenpeissenberg.