Investigation of New Particle Formation mechanisms and aerosol processes at the Marambio Station, Antarctic Peninsula Dataset: Times series for sulfuric acid, methane sulfonic acid and iodic acid concentrations Instrument: CI-APi-TOF: Chemical ionization atmospheric pressure interface time of Flight mass spectrometer ( using Nitrate as reagent ion) Column #1-6: Time (Year,Month, Day, Hour, Minute, Second) Column #7: Sulfuric acid concentration (molecules per cubic centimeter) Column #8: Methane sulfonic acid concentration (molecules per cubic centimeter) Column #9: Iodic acid concentration (molecules per cubic centimeter) The data were averaged to 10 min - time resolution For more information: QuŽlŽver, L. L. J., Dada, L., Asmi, E., Lampilahti, J., Chan, T., Ferrara, J. E., Copes, G. E., PŽrez-Fogwill, G., Barreira, L., Aurela, M., Worsnop, D. R., Jokinen, T., and Sipila, M.: Investigation of New Particle Formation mechanisms and aerosol processes at the Marambio Station, Antarctic Peninsula, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2021-1063, in review, 2022 Or contact the corresponding author: Lauriane L. J. QuŽlŽver (Lauriane.quelever@helsinki.fi)