Hey everyone! I work in libraries and my colleagues and I were sent a small study conducted by conservators at the Natural History Museum London. They tested a small sample size of books with leather rot and found above the permissible amounts of Arsenic, Cadmium, and Lead. I share this because I work in a large institution and we are implementing a *requirement* of PPE (N95 respirators, gloves, aprons. Sleeve covers and goggles are recommended, but they're optional for now until more testing is done). We are also handling books with leather rot in a separate room to contain the dust as much as possible.
Basically there was a sizeable reaction and sudden importance of wearing PPE, so I think it is important to note. I'm not telling anyone to do anything because I know gloves can often do more harm than good when handling fragile books. However, if this information is of use to anybody I'd rather get it out there.
I likely won't be able to answer many questions if you have them, I'm just spreading what's being relayed to me!
Here is the citation:
Tarnowska, M., Montgomery, W., Konstantinidou, K., Clatworthy, I., & Jiang, L. (2026). Deteriorating leather bindings and red rot – health and safety considerations. Journal of the Institute of Conservation, 49(1), 36–57. https://doi.org/10.1080/19455224.2025.2602927