California’s Designated Chemicals List

On 30 June 2015, California Office of Environmental Health Hazard Assessment (OEHHA) released the update list of designated chemicals. The designated chemicals for the California Environmental Contaminant Biomonitoring Programme (also known as Biomonitoring California) are provided in this list. Designated chemicals consist of those substances that are included in the Centres for Disease Control and Prevention’s (CDC’s) biomonitoring studies and additional chemicals that are recommended by the Scientific Guidance Panel (SGP) for Biomonitoring California. Designated chemicals are the pool of chemicals from which the SGP can recommend priority chemicals for biomonitoring. Targets for measurement in biomonitoring studies could include the parent chemical, metabolites and other chemical products formed in the body or the environment (e.g., haemoglobin adduct; environmental degradation product). The approach for biomonitoring a chemical may change as methods development proceeds. For some of the parent chemicals listed below, metabolites or other targets for measurement are shown indented underneath. Chemicals are grouped into categories (like “metals” and “pesticides”); some are included in more than one category. The Programme determines the chemicals that are actually biomonitored and the appropriate targets for measurement. To jump to each footnote referenced in the list below, click on the relevant number. A copy of the updated list is available at:


OEHHA, 30 June 2015