The [Environmental Protection Agency] has set a 10-year deadline for most utilities to replace lead service lines, but omitted requirements for schools to replace the water fountains or plumbing that have lead components.
Archived at https://ghostarchive.org/archive/F5qXx
Lead exposure doesn’t make you weird, it makes you dumber and increases your risk of cardiovascular problems and dementia later in life.
Air lead exposure in the US dropped off a cliff in the late 70s, people born after 1980 had very little lead exposure from the air on a population level
I was born in 1977.
It decreases inhibition as well. IIRC, that’s one reason it’s hypothesised lead exposure contributed to the crime waves, and why blood lead levels are correlated to incarceration.