cc-by-4.0Sipilä, Mikko2025-04-292022-01-192022-01-19https://datakatalogi.helsinki.fi/handle/123456789/4618This data set is connected to the article:  Jokinen, T., Lehtipalo, K., Thakur, R. C., Ylivinkka, I., Neitola, K., Sarnela, N., Laitinen, T., Kulmala, M., Petäjä, T., and Sipilä, M.: Measurement report: Long-term measurements of aerosol precursor concentrations in the Finnish sub-Arctic boreal forest, Atmos. Chem. Phys., 2022SMEAR IAerosolsPrecursorsSulfuric acidMethanesulfonic acidIodic acidCI-APi-TOFmass spectrometrydataset