If your only concern is the lead landing in trash uncontrollably, you can solve it by just controlling the trash (we mostly do that already).
Lead has been phased out because of direct contamination and environment contamination. A chemically stable superconductor tape won't be a problem for either of those.
The manufacturing process will probably be much more of a problem, but again, it's a matter of solving that problem.
If your only concern is the lead landing in trash uncontrollably, you can solve it by just controlling the trash (we mostly do that already).
Lead has been phased out because of direct contamination and environment contamination. A chemically stable superconductor tape won't be a problem for either of those.
The manufacturing process will probably be much more of a problem, but again, it's a matter of solving that problem.