We might have eliminated part of the problem, but the problem will persist. It is really a question of coordinating services. How can members of the public be convinced of their moral duty to do their fair share, even if that means providing financial support, of course?
Can we make a correlation between lead and mercury, for instance? As everyone knows, every particle of mercury that we ingest by eating fish, for example, accumulates and our system cannot eliminate it.
Can the same thing be said for lead as well?