On Sat, 11 Apr 2009 13:53:54 +0100, Eeyore wrote:


Where did the lead come from ? I wouldn't mind betting it's natural, as
is Radon gas in Cornwall, UK from decaying isotopes in granite.

Well, you lost that bet. It came from lead ore dust from ship load
operations. They jusyt didn't wet it down in what is/was basically a hot
dry and windy location.