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Environmental Health Investigations Branch

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Biomonitoring is a way to measure the chemicals in a person’s body. Scientists take samples of
people’s blood and urine and measure the chemicals that are present. These measurements help us determine if a person has been exposed to harmful chemicals.
What we learn from biomonitoring studies can be used to help keep harmful chemicals out of our

environment and the products we buy.

Biomonitoring California

The California Environmental Contaminant Biomonitoring Program (CECBP, or Biomonitoring California) was established in 2006 by Senate Bill 1379. (Perata and Ortiz, Chapter 599, Statutes of 2006; codified at Health & Safety Code Sections 105440 et seq.).  

Biomonitoring California is a joint effort of the Department of Public Health, the Office of Environmental Health Hazard Assessment, and the Department of Toxic Substances Control. The Exposure Assessment Section supports study design, exposure assessment, sample collection, epidemiology, and health communication for Biomonitoring California. 

Reports to the Legislature

Senate Bill (SB) 1379 requires the Program to submit a report to the Legislature every two years.

 CDPH Links


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