Skip Navigation

EH-20.4 Data Details

EH-20.4 Reduce exposure to mercury among children aged 1 to 5 years, as measured by blood and urine concentrations of the substance or its metabolites

About the Data

Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.

National Data Source
National Health and Nutrition Examination Survey (NHANES); Centers for Disease Control and Prevention, National Center for Health Statistics (CDC/NCHS)
National Report on Human Exposure to Environmental Chemicals; Centers for Disease Control and Prevention, National Center for Environmental Health (CDC/NCEH)
Changed Since the Healthy People 2020 Launch
Baseline (Year)
1.80 (2003-2004)
Target-Setting Method
Maintain consistency with national programs, regulations, policies, and laws.
Concentration level of mercury in blood samples at which 95 percent of the population aged 1 to 5 years is below the measured level
Data Collection Frequency
Comparable Healthy People 2010 Objective
Retained from HP2010 objective
Methodology Notes

The National Report on Human Exposures to Environmental Chemicals provides unique exposure information to scientists, physicians, and health officials to help prevent disease that results from exposure to environmental chemicals. Specific public health uses of the exposure information in the National Report series are: - To determine which chemicals get into Americans and at what concentrations; - For chemicals with known toxicity levels, to determine the percent of the population with levels above those associated with adverse health effects; - To establish reverence ranges that can be used by physicians and scientists to determine whether a person has an unusually high exposure; - To assess the effectiveness of public health efforts to reduce exposure of Americans to specific chemicals; - To determine whether exposure levels are higher among minorities, children, women of childbearing age, or other vulnerable groups; To track, over time, trends in levels of exposure of the population; and - To set priorities for research on health effects of exposure. See for laboratory and analytic methods used.


Additional resources about the objective.

  1. Exposure of humans to environmental chemicals