When I was a baby we lived virtually directly under the Sydney Harvour Bridge, I got lead poisoning as a result of runoff from the bridge. The combination of leaded petrol and leaded paint runoff poisoned the soil in playgrounds and the area more generally.
My case and probably those of others lead to a huge cleanup of the bridge.
My life has been absolutetly plagued with chronic health and "developmental" problems. Neurodivergence and other conditions litter my family tree, but they seem to effect me much more severely than they do most of my relatives.
I often find myself wondering these days if my life would have featured significantly less hardship were it not for the lead poisoning.