Nit: You're off by about a factor of 3 because it's 14.6 t/day.
https://www.scientificamerican.com/article/antarctic-study-s...
Apparently around 1.4%.
So the starlink satellites dissipating could increase the aluminum oxide arriving up there by ~10% - depending which numbers are correct I suppose it could be anywhere from like 3-30%.
Nit: You're off by about a factor of 3 because it's 14.6 t/day.
https://www.scientificamerican.com/article/antarctic-study-s...