We make jewelry, and we can specify cadnium free solder, which we do. It's also in fine oil paint, cadnium red/yellow and blue probably contains cadnium. Hulda Clark says cadnium is in plumbing solder. I noticed she also said people shouldn't wear gold jewelry if they are overweight because gold collects in the thymus, (?) or some other gland , can't remember which, but it interfers with appetite control.
When I come accross which one, I'll post it.
I don't think the cadnium in jewelry is so much a problem for the wearer, because it's going to be in very small amounts, but it is going to be as issue for people who work with it all of the time. No need for it, in any case.
Julie