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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Neurotoxicology. 2019 Mar 2;73:58–80. doi: 10.1016/j.neuro.2019.02.021

Figure 2.

Figure 2.

Blood lead levels determined to be levels of concern, or reference values, by the Advisory Committee on Childhood Lead Poisoning Prevention (ACCLPP), a Centers for Disease Control and Prevention (CDC) workgroup. In 2010, the reference value was decreased to 5 μg/dL only for pregnant women, followed by a similar decrease in 2012 to include children. By 2015, the decrease also applied to adults. In 2016, a suggested decrease to 3.5 μg/dL was based on the latest National Health and Nutrition Examination Survey (NHANES) data outlining the current 97.5th percentile of blood lead levels in children.