Dušan Materić 1,*, Rupert Holzinger1, Helge Niemann2,3 1 Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Princetonplein 5, 3584CC Utrecht, the Netherlands 2 NIOZ Royal Netherlands Institute for Sea Research, Landsdiep 4, 1797 SZ 't Horntje (Texel), the Netherlands 3Department of Earth Sciences, Utrecht University, Princetonplein 5, 3584CC Utrecht, the Netherlands *Correspondence: d.materic@uu.nl This is the repository of the supplementary, data and it contains: 1. Raw .h5 data files as the original output of TD-PTR-MS for the direct measurement (Site A); 2. Raw .h5 data files as the original output of TD-PTR-MS for the cascade filtering measurements (Site B); 3. Raw .h5 data files as the original output of TD-PTR-MS for the calibration measurements (PS and PET); The folder also contains processing files as the output of PTRwid software used; 4. PTRwid version of software we used for mass spectra and molar ratio extraction; 5. PTRwid associated parameters file that contains the ...