The only problem is that a lot of these restrictions are knee jerk reactions to prove that some technically ignorant shinny bum is worth the money that he extorts from the government by preventing the correct material being used for a job with proper precautions. Based on the results of successful litigations and not scientific fact.
Eg;- lead metal is harmless to the human body, you can not digest it. Hydrochloric acid used to be transported and stored in lead lined tanks as it is virtually insoluable in lead. We drink beer from Pewter tankards and the Poms make tea in pewter tea pots ( silver plated if they have a few bob to spare ) and until quite receint times pewter had some where around 20% lead, also arsenic, cadmium, bismouth.
Lead oxide is different, it is digestable, but white lead & yellow lead are still used with gay abandon all over the place ( except in paint ).
So we removed the lead from solder & replaced it with Bismouth & Cadmium & Antimony all of which are soluable in the bodies digestive system and the fumes from each are all much more toxic than lead.
We replaced tern plate for pressed parts like petrol tanks in cars ( that is why they don't rust out from the inside very much) with plastic so they can rupture in a collision and incinerate the occupants.
Butcher have to use plastic chopping blocks instead of wood because some twit in a horse hair wig convinced another technically ignorant twit in a horse hair wig that wood was dirty and promoted the growth of pathogens ( don't tell the forests that ) ,which made his client sick, so now we have a mass of butchers who have to saw cuts of meat because the plastic blocks blunten their knives & choppers and bounce so they lop of fingers. From the same court case sawdust as a floor covering was also banned so now butchers floors have mineral dust ( like calcine ) or diatomatious earths or some synthetic fat absorbant that cost a fortune and dose not stop the floor becoming slippery, and in time will be found to be highly castenogenic
Millions of tons of cadmium oxide is used in paint ( yellow colours ) and most yellow plastic is yellow because of either yellow lead oxide or yellow cadmium oxide.