Remember this...
You wash your hands and cloths NOT because you absorb it -lead, through the skin, but because you use your hands to put things in your mouth! And your hands touch your clothing and when clothing is flexed, it gives up dust and organic solvents, which you breath.
About 15yrs ago, at my insistence, I had my blood level checked when going for my flight physical. It was less than 5. Even my AME (aviation medical examiner) was suprised at how low it was. I was shooting PPC, and casting my own bullets- about 50,000rds a year. And, logging ~300hrs flight time/yr (AV gas has 2gm/gal tetra ethyl lead!)
But, I don't eat, drink while casting, or shooting, or cast indoors w/o forced ventilation. Don't smoke! Or sniff AV gas.
I don't have city water, or lead pipe plumbing either!
I second good hygiene and not drinking public water!
Still active at 60 as a flight instructor, and PPC and Hi-Power competitor.