If you do a little research on the archival preservation of documents, books and paper products, you should find some suggestions for dealing with album jackets. I don't know how effective some of the methods are, or whether they risk damage to the colors or finishes of the jackets. (My suspicion is that many archives would probably start with fairly mild approaches that may be insufficient). There is considerable literature on this. Let me know if you cannot find it.
In the meantime, I would keep the records far away from the contaminated jackets, and even if 'treated,' keep the contaminated jackets away from other records/jackets or other materials in your home on which the fungus can grow.
Let us know what you find.
In the meantime, I would keep the records far away from the contaminated jackets, and even if 'treated,' keep the contaminated jackets away from other records/jackets or other materials in your home on which the fungus can grow.
Let us know what you find.