Someone told me that one of the greatest expenses ranges have is in controlling ventillation and any possible issues with airborne lead and mercury compounds. For as infrequently as I go (so far about 1 hour a month), I'm not really too concerned.
As far as residue on your hands, I think washing with soap is all that is needed. While injestion of lead is never good, trace amounts are not going to kill you. Just my $.02 worth.
“At what point then is the approach of danger to be expected? I answer, if it ever reach us, it must spring up amongst us. It cannot come from abroad. If destruction be our lot, we must ourselves be its author and finisher. As a nation of freemen, we must live through all time, or die by suicide.”
- Abraham Lincoln