A sledgehammer to swat flies.
Lead is an overblown problem. Always has been.
Seems passing strange that during the heyday of using lead based paints we managed to invent cars. light bulbs and go to the moon to mention but a few things....
Swab every Section 8 and public housing for crack residue and then shut them down.
Works for me.
Grow the bureaucracy. Always job number 1.