autobahn wrote:Lead is an extremely toxic metal. It's pretty easy to see why someone would think going without it would be an attractive idea. But there are ways to mitigate the risk without going "lead free".
I happened to be on the phone with the guy I normally ask chemistry questions (he does environmental chemical degradation studies for a living). His comment was that metallic lead is actually not that dangerous (unless its moving 2,000 feet per second). It is lead oxide (what was actually in lead-based paints) that is the real problem. You can ingest metallic lead without to much concern.
The birds that they were finding high lead in, were ingesting lead pellets, which would get ground up against the rocks they also ingested. The increased surface area was enough that the lead reacted with the hydrochloric acid of the gut to produce lead chloride, in sufficient amounts to show up. Humans, on the other hand would pass it.
"Justice and power must be brought together, so that whatever is just may be powerful, and whatever is powerful may be just.” ~Blaise Pascal~