The ambient air in Pallastunturi is amongst the cleanest in the World, with particle number concentrations reaching levels of 10 #/cm3 during cold winter days, and up to a few thousand #/cm3 during strong biological activity in the summer. This provides an excellent opportunity to study the atmospheric composition of sub-Arctic air, where climate change is affecting the atmospheric composition rapidly.

In addition to research services, the station offers excellent possibilities for instrument development and -testing in the low concentration, Arctic setting.

Virtual Access is offered to continuous measurements conducted for ACTRIS aerosol in situ-, trace gases in situ-, cloud in situ- and cloud remote sensing measurements. Pallastunturi also hosts an air quality background supersite fulfilling the requirements of the new European air quality guidelines. Physical- and remote Access for installing additional instruments at the station is provided.