I wouldn’t call it contamination if it’s literally just from natural soil and minerals sourced from fairly typical rocks. I wasn’t claiming heightened lead exp

I wouldn’t call it contamination if it’s literally just from natural soil and minerals sourced from fairly typical rocks. I wasn’t claiming heightened lead exposure is good, just responding to those who seem shocked that we tolerate some low level of lead in foods. Obviously leaded paint is dumb and we STILL, for some reason (well, I know the reason, but it’s not a good one imo), allow leaded aviation fuel. In fact, fully unleaded fuel was not allowed in a very large fraction of general aviation aircraft until recently because the FAA dragged their feet in approving lead free fuel mixtures for heritage general aviation aircraft (which is a large fraction of the general aviation fleet since lawsuits and the FAA have made newer aircraft just obscenely expensive), which is still very rare in small airports. It is, ironically, the downstream effect of improper and over-regulation of general aviation.