What was the change in the blood lead level (BLL) trigger for intervention in children, and what was the rationale for this change?
The blood lead level (BLL) trigger for intervention in children was changed in 2012 from 10 to 14.9 μg/dL to a BLL of 5 μg/dL. The rationale was evidence that even lower levels of lead exposure increase the risk for adverse health outcomes in children.
According to the text, the previous BLL that triggered interventions in children was 10 to 14.9 μg/dL. In 2012, this threshold was lowered to 5 μg/dL. The change was based on evidence showing that even lower levels of exposure increase the risk for adverse health outcomes in children. This lowered threshold allowed for earlier intervention, such as home environmental assessments and follow-up care for children with elevated blood lead levels.
Key points
- The prior intervention trigger was BLL 10 to 14.9 μg/dL.
- In 2012, the trigger was changed to 5 μg/dL.
- The rationale was evidence that lower lead exposure levels still raise the risk of adverse health outcomes in children.
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