Scientific Publications

Below you’ll find a variety of helpful resources, research, and data about childhood lead poisoning prevention.

Some of the documents below refer to a blood lead level of 5 micrograms per deciliter (μg/dL) as the CDC’s blood lead reference value. CDC uses a blood lead reference value of 3.5 micrograms per deciliter to identify children with blood lead levels that are higher than most children’s levels. This new level is based on the U.S. population of children ages 1-5 years who represent the top 2.5% of children with the highest blood lead levels. For more information, refer to Blood Lead Reference Value.

Some of the documents below may also refer to a blood lead level of 10 micrograms per deciliter (μg/dL) as the CDC level of concern for adverse health outcomes in children. This terminology is outdated, and readers are referred to the ACCLPP recommendations of 2012.

Some of the documents on this page are presented for historical purposes and are not being maintained or updated.

** These documents are being kept on this website for historical purposes and are no longer in print.