The mean level of lead in children in the late 1970s was 15, something that would trigger an intervention today. By 2003, it was down to 1.6. We still have a ways to go, but we continue to make great progress.
Above 60 is a medical situation, usually involving an ambulance to the hospital. The boy who died had a level of 180, and by the time they were able to diagnose the lead and get the results back, he was too far gone. There was too much brain damage.
Enforcing it would be well beyond the resources we have, and it misses the boat for where the vast lead poisoning occurs ? from lead paint in the house.
In spite of this tragedy, reducing lead poisoning remains one of the most successful public-health interventions of the past 50 years.
