I am not aware of threats to the atmosphere from the entry at a 100kg/day scale. And nobody is. At this point risks are hypothetical to the ozone or other layers.
if the aersols do cause any problems we're done for quite a while as they do not seem to come down. As I understand it the amount of aerosol will be quite significant in this layer of athmosphere. https://csl.noaa.gov/news/2025/427_0428.html
