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Biomonitoring Indicators

Data about human exposure to environmental chemicals come from CDC's National Health and Nutrition Examination Survey (NHANES) as presented in CDC's National Report on Human Exposure to Environmental Chemicals. NHANES is an ongoing, complex survey that samples the U.S population. It collects different types of information to provide an assessment of the population's overall health and nutrition.

The biomonitoring indicator below provides information about environmental chemicals or their metabolites found in human urine or blood, classified in the following environmental chemical groups:

  • Tobacco Smoke
  • Metals and Metalloids
  • Volatile Organic Compounds (VOCs)
  • Disinfection By-Products
  • Per- and Polyfluorinated Substances (PFAS)
  • Personal Care and Consumer Products
  • Pesticides
  • Polycyclic Aroamtic Hydrocarbons
  • Phthalate

Read more about the environmental chemicals.

National Report on Human Exposure to Environmental Chemicals

This indicator shows concentrations of different environmental chemicals in urine or blood. These data tell you what levels of those environmental chemicals are found in urine and blood samples from people who are typical examples of the U.S. population. These data are available for the United States as a whole, not by county, state, or region. They do not provide information about specific sources of exposure, exposure pathways, or health effects from exposure.

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