I must agree with birdman652001. Studies on lead poisoning have been going on for decades. There are states where you arent supposed raise farm animals within a hundred feet of a house that has lead paint on it, NY included. I found this on the USDE site.
"Paint, drinking water, and pollution seem to be the major sources of
lead. The long term effects of lead poisoning in children include
learning disabilities, decreased growth, hyperactivity, impaired hearing,
and even brain damage. If caught early, these effects can be limited by
reducing exposure to lead or by medical treatment. Lead can pass through
mother to baby.
Adults could show a variety of symptoms ranging from weakness to fatigue
and paralysis, gastrointestinal diseases, high blood pressure, and a host
of nervous system ailments.
There are simple tests that can determine the lead level in the body;
hair, finger nail, or other body tissues can be used. As a case in point,
a recent study at Argonne, using what is thought to be Beethoven's hair,
seem to suggest that the composer's ailments were due to lead poisoning.
Information on this should be available at WWW.ANL.GOV."
Ali Khounsary, Ph.D.
Advanced Photon Source