[chaxor]

It's a small problem? I read recently that GA accounted for >50% of environmental lead exposure.

Perhaps that's wrong, but I distinctly remember the statistic and it stuck with me.

[mlyle]

Source please. All the studies I've read have barely detected higher levels of lead near airports, and are confounded. All the estimates from first principles estimate that it's a very small proportion of population lead exposure, too.