Is lead exposure going up or down? I assume it's going down, because lead gasoline was banned, lead paint was banned, and the lead that was in the environment due to those 2 source is slowly being cleaned up.
I at least assume lead exposure now is lower than when leaded gas was primarily used. In the US it started to be phased out in 1973 and finished in 1996.
Down a lot now, but likely peaked in the 70s -- Kids growing up then are likely 50-60 which are the higher turnout voting brackets.
There's a lagging effect from lead exposure, so it's difficult to pinpoint when those exposed would be most impacted.
https://usafacts.org/articles/how-many-americans-vote-and-ho...