I work at a semi-indoor range where mostly Winchester NT is shot. As per the range requirement, we must get our levels tested every year. Even with the NT, frequent hand washing, and changing clothes before going home, I'm at a little above 14 -- and that's after only three years.
I recently attended a class taught by a very prominent government agency. According to the instructors, lead exhibits properties that are very similar to calcium. Because of this, approximately 94% of the lead that enters our system gets deposited in our bones where it takes about twenty years to cycle out. The other 6% gets absorbed into our soft tissues and gets flushed out within a few months.
To the doctors listening: If this is correct, then would a blood test really be the most accurate way to determine someone's lead levels? And, is the lead that gets deposited into our bones benign, or should we worry about that too?