Lead exposure remains a worldwide health concern measured through blood lead concentrations, modeled disease burden, legal controls and material flows. The figures below distinguish global estimates from U.S. biomonitoring observations and from the broader municipal-waste category used for battery statistics.
Key Lead Exposure Statistics
The most broadly useful figures are:
- In 2023, more than 3.5 million deaths worldwide were attributed to lead exposure in an IHME-modeled estimate reported by WHO.
- In 2023, lead exposure accounted for more than 71.5 million disability-adjusted life years worldwide in an IHME-modeled estimate.
- In the 2020 UNICEF report estimate, around one in three children globally, up to 800 million children, had blood lead levels at or above 5 µg/dL.
- In January 2024, 48% of countries had legally binding controls on lead paint.
- In 2011–2012, the U.S. total-population blood-lead geometric mean was 0.973 µg/dL among the civilian noninstitutionalized population.
- In 2017–2018, the U.S. total-population blood-lead geometric mean was 0.753 µg/dL among the civilian noninstitutionalized population.
- In 2011–2012, the U.S. total-population 95th-percentile blood lead concentration was 3.16 µg/dL.
- In 2017–2018, the U.S. total-population 95th-percentile blood lead concentration was 2.41 µg/dL.
- Among U.S. children ages 1–5, the blood-lead geometric mean was 0.970 µg/dL in 2011–2012.
- Among U.S. children ages 1–5, the blood-lead geometric mean was 0.670 µg/dL in 2017–2018.
- Among U.S. children ages 1–5, the 95th-percentile blood lead concentration was 2.02 µg/dL in 2017–2018.
- Among U.S. children ages 1–5, the geometric mean declined from 15.2 µg/dL in 1976–1980 to 0.83 µg/dL in 2011–2016.
- The U.S. blood-lead reference value fell from 5 µg/dL in 2012 to 3.5 µg/dL in 2021 for children ages 1–5.
- In 2021, 2.5% of U.S. children ages 1–5 were at or above 3.5 µg/dL, the percentile-based reference value.
- In 2011–2016, children in families below 1.3 times the poverty threshold had a geometric mean of 0.97 µg/dL.
- In 2011–2016, non-Hispanic Black U.S. children ages 1–5 had a geometric mean of 1.07 µg/dL.
- In 2018, estimated recycled battery lead represented about 99% of the in-scope U.S. lead-acid battery lead.
Contents
- Global lead exposure statistics and disease burden
- Childhood blood lead exposure statistics worldwide
- U.S. blood lead statistics across NHANES years
- U.S. childhood lead exposure statistics by age and sex
- Lead exposure statistics by race and household income
- Lead battery recycling and environmental lead statistics
Global Lead Exposure Statistics and Disease Burden
WHO reports that lead exposure was attributed to more than 3.5 million deaths worldwide in 2023, primarily through cardiovascular effects. The figure is an IHME estimate reported by WHO, so it is a modeled attribution rather than a direct death count: WHO, “Lead poisoning”.
The same 2023 modeling attributed more than 71.5 million disability-adjusted life years worldwide to lead exposure. DALYs combine years of life lost and years lived with disability in the modeled burden estimate; they are not a count of individual patients.
WHO’s current clinical-evidence summary says blood lead concentrations as low as 3.5 µg/dL may be associated with decreased intelligence, behavioral difficulties and learning problems in children. This is an association threshold, not a biological line separating safe and unsafe exposure.
Young children may absorb 4–5 times as much lead as adults from an ingested dose. That comparison is route-specific and describes relative absorption, not total exposure from every pathway.
The policy picture is also measurable. As of January 2024, 48% of countries had legally binding controls on lead paint, a legal-control count that does not measure enforcement effectiveness or paint-market compliance.
WHO’s 2021 guideline recommends identifying and terminating the exposure source for people with blood lead concentration at or above 5 µg/dL. The recommendation is for clinical management and does not establish that lower concentrations are safe.
Childhood Blood Lead Exposure Statistics Worldwide
The UNICEF and Pure Earth 2020 report estimated that around one in three children globally—up to 800 million children—had blood lead levels at or above 5 µg/dL. The estimate is modeled, reflects available evidence at publication and should not be treated as a registry count: UNICEF, “The toxic truth: Children’s exposure to lead pollution undermines a generation of future potential”.
The report identified children under age 5 as especially vulnerable to permanent neurological, cognitive and physical impairment. It described the 5 µg/dL level as requiring global and regional interventions by WHO and CDC, which is a policy interpretation of the threshold rather than a separate prevalence estimate.
| Global childhood measure | Period | Reported result |
|---|---|---|
| Children with blood lead at or above 5 µg/dL | 2020 report estimate | Around 1 in 3 |
| Children affected at or above 5 µg/dL | 2020 report estimate | Up to 800 million |
| Especially vulnerable population | 2020 report | Children under age 5 |
These global figures use a modeled estimate and a defined blood-lead threshold. They should not be compared directly with U.S. NHANES geometric means, which describe a different population, survey design and statistic.
U.S. Blood Lead Statistics Across NHANES Years
CDC NHANES results cover the U.S. civilian noninstitutionalized population and report weighted whole-blood biomonitoring estimates. A measured blood concentration indicates exposure but does not by itself establish disease causation: CDC, “Early Release: Blood Lead Table, NHANES 2011-2018”.
| U.S. population measure | 2011–2012 | 2013–2014 | 2015–2016 | 2017–2018 |
|---|---|---|---|---|
| Total-population geometric mean, µg/dL | 0.973 | 0.858 | 0.820 | 0.753 |
| Total-population 95th percentile, µg/dL | 3.16 | 2.81 | 2.75 | 2.41 |
| Children ages 1–5 geometric mean, µg/dL | 0.970 | 0.782 | 0.758 | 0.670 |
| Children ages 1–5 95th percentile, µg/dL | 2.91 | 2.24 | 2.76 | 2.02 |
Across the four NHANES periods, both the total-population geometric mean and 95th percentile were lower in 2017–2018 than in 2011–2012. For children ages 1–5, the geometric mean also declined across the endpoints, while the 95th percentile moved from 2.91 to 2.02 µg/dL but was not monotonic in every intervening period.
The geometric mean summarizes the central tendency on a multiplicative scale, while the 95th percentile describes the upper end of the measured distribution. These are weighted estimates with 95% confidence intervals in the source and should be read as survey estimates rather than a complete census.
U.S. Childhood Lead Exposure Statistics by Age and Sex
The longer NHANES comparison shows a substantial decline in childhood blood lead over several decades. Among U.S. children ages 1–5, the geometric mean fell from 15.2 µg/dL in 1976–1980 to 0.83 µg/dL in 2011–2016; among ages 6–11, it fell from 12.7 to 0.6 µg/dL over the same periods: CDC, “Update of the Blood Lead Reference Value — United States, 2021”.
| U.S. childhood group | 1976–1980 geometric mean | 2011–2016 geometric mean |
|---|---|---|
| Ages 1–5 | 15.2 µg/dL | 0.83 µg/dL |
| Ages 6–11 | 12.7 µg/dL | 0.6 µg/dL |
Age-specific 1–2 and 3–5 comparisons also declined between 1999–2002 and 2011–2016. Children ages 1–2 moved from 2.19 to 0.93 µg/dL, while children ages 3–5 moved from 1.82 to 0.77 µg/dL.
Sex-specific estimates for children ages 1–5 were identical for boys and girls in 1999–2002 at 1.95 µg/dL. By 2011–2016, the weighted geometric mean was 0.86 µg/dL for male children and 0.79 µg/dL for female children.
CDC established a blood-lead reference value of 5 µg/dL in 2012 and lowered it to 3.5 µg/dL in 2021. The 2021 value corresponds to the 97.5th percentile, or 2.5% of U.S. children ages 1–5 at or above 3.5 µg/dL; it is a population reference value, not a health-based toxicity threshold.
Lead Exposure Statistics by Race and Household Income
The CDC MMWR subgroup estimates show different measured geometric means among U.S. children ages 1–5, with all listed groups lower in 2011–2016 than in 1999–2002. These are NHANES subgroup estimates, not explanations of why individual children have particular concentrations.
| U.S. subgroup, ages 1–5 | 1999–2002 | 2011–2016 |
|---|---|---|
| Non-Hispanic Black children | 2.81 µg/dL | 1.07 µg/dL |
| Mexican American children | 1.89 µg/dL | 0.78 µg/dL |
| Non-Hispanic White children | 1.83 µg/dL | 0.79 µg/dL |
| Families below 1.3 times poverty threshold | 2.44 µg/dL | 0.97 µg/dL |
| Families at or above 1.3 times poverty threshold | 1.60 µg/dL | 0.72 µg/dL |
The income-to-poverty ratio is family income divided by the poverty threshold. In both periods shown, the geometric mean for children in families below 1.3 times the threshold exceeded the estimate for children in families at or above that ratio.
The race and ethnicity categories are those used in the source’s subgroup analysis. Comparisons should retain the survey population definitions, periods and uncertainty intervals rather than being interpreted as individual risk predictions.
Lead Battery Recycling and Environmental Lead Statistics
EPA’s material-specific series uses the broader “other nonferrous metals” municipal-solid-waste category, which includes lead, copper and zinc. Battery lead is identified as the main component in the source, but the series is not a complete measure of all lead releases or all industrial battery recycling: EPA, “Other Nonferrous Metals: Material-Specific Data”.
| U.S. municipal-solid-waste measure | Period | Quantity |
|---|---|---|
| Other nonferrous metals generated | 1960 | 180,000 tons |
| Other nonferrous metals generated | 2000 | 1.60 million tons |
| Other nonferrous metals generated | 2010 | 2.02 million tons |
| Other nonferrous metals generated | 2015 | 2.01 million tons |
| Other nonferrous metals generated | 2018 | 2.51 million tons |
| Lead in batteries within the 2018 analysis | 2018 | Approximately 1.7 million tons |
The historical recycling series reported 320,000 tons in 1970, 1.06 million tons in 2000, 1.44 million tons in 2010 and 1.29 million tons in 2015. For 2018, approximately 1.69 million tons of other nonferrous metals were recycled, and estimated recycled battery lead represented about 99% under the source methodology.
Disposal quantities provide a different view of the same material category. In 2018, 80,000 tons went to combustion with energy recovery and represented 0.2% of all U.S. municipal-solid-waste combustion with energy recovery, while landfills received 740,000 tons, representing 0.5% of all U.S. municipal solid waste landfilled.
The 2018 combustion and landfill comparisons are EPA-reported comparisons for the broader other-nonferrous-metals category, not lead-only measurements. EPA’s series draws on source data from Battery Council International, the Census Bureau and the National Automobile Dealers Association.