Are you saying that lead cannot oxidize from the solder on a board and leach into water?
No I am saying that there has never been any documented nor experimental evidence that this can happen in land fill with electronic equipment. Sure you can put all sorts of acid on it to make it oxidize but those acids are not found in any landfill situations.
So it seems likley the ban (on leaded solder etc) was based more on a general 'its a good idea' than actual hard evidence.
Yes, it is known as "the precautionary principle" - which a lot of EU legislation is based on. That means no evidence, but we like banning stuff so we cover our arse. That is why we now have to put up with glues that don't stick, wood preservative that doesn't preserve wood and cold treatments that don't work. This is due to
- Stupidity
- Lobbying by companies that seek to profit or cripple their rivals.
- Stupidity
Same with banning lead in the paint on pencils. You would have to chew through several boxes per days for a few months to exceed minimum safety levels.
Latest one is the proposed ban on glyphosate-based herbicides because traces many thousand times lower than "safe" levels have been found elsewhere. That may be a ban too far and countries are starting to kick back. The whole EU is a farce in this respect and the quicker the UK is out of it the better so they can paint themselves into their own bureaucratic corner.
Did you know there was a ban on advertising water as capable of rehydrating you. That caused such an outrage that they rescinded it, but the stupid bureaucrats still thought it a good idea to introduce.