Appendix for the article published in EPSL (2025) "The extraterrestrial dust accretion rate on Earth at Dome C, Antarctica: a fresh look with 3He by G. Fénisse, D.V. Bekaert, P.-H. Blard, J. Duprat, I. Mattia, M. Genge, M.D. Suttle, O. Barres, C. Engrand, Y. Marrocchi

Files used in this study:
A. Cosmic dust collection into ultra-clean snow at the Concordia station (Dome C, Antarctica) selected for this study at CRPG
B. Picture and conceptual image of extraction system
C. IR spectroscopy of macro-plastic contaminants
D. Table results giving the He isotopic compositions and total masses deduced by size range of cosmic dust extracted from the Concordia snow
E. Database of 3HeET fluxes
F. Database of noble gas compositions in IDPs/MMs available in literature
G. Neon three isotopes diagram
H. The impact of cosmic dust density on the He vs. mass relationship
I. The mass flux of terrestrial dust 4He terrigenous-bearing