Comment by johnboiles

1 month ago

That seems incredibly fast for plastic to degrade like that. I wonder if you could have something generating ozone in there.

I'm not sure either. It's not an air tight bomb shelter and it's used like an average storeroom, storing stuff like winter jackets, suitcases and paint. I do use small amounts of Calcium Chloride based dessicants to keep the room dry.

  • Have you checked for Radon?

    • Radon is a noble gas and chemically inert. It's radioactive, which is why it's a toxicity worry. But there was enough radiation in that basement to mechanically damage plastic in three years, OP would be long since dead.

    • Radon and its progenitors won't produce nearly enough radiation to damage plastics like that at naturally occurring levels.

My first thought exactly. I know someone who inadvertently melted a ton of stuff with overuse of an ozone generator, similar kind of effect

With all these paper reams on the picture, is there any laser printer nearby?