Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)Pasi AaltoPetri KeronenMatti LeskinenErkki SiivolaLeena Järvi2025-04-292019-09-05https://datakatalogi.helsinki.fi/handle/123456789/642This dataset contains data from measurements of 1) atmospheric trace gas concentrations (O3, NO, NO2, SO2, CO) and 2) meteorology, solar and terrestrial radiation, and 3) aerosols done at SMEAR III research station at Kumpula campus, Helsinki, during years 2005–2018.1789538085Openhttps://creativecommons.org/licenses/by-sa/4.0/air temperaturerelative humiditysolar radiationtrace gasesair pollutionaerosolsdataset