With something that's poison, reducing your intake just a bit is probably the best thing you can do. We know about vapor and outgassing and how temperature affects this. You don't need "sources" just a basic high school level understanding of chemistry to understand these things. I don't need a source to tell me water boils.
There are reams of information out there about how age affects plastics, and how. It's all based on basic chemistry.
There are reams of information out there about how age affects plastics, and how. It's all based on basic chemistry.