Updated tables for the National Report on Human Exposure to Environmental Chemicals

The CDC’s Division of Laboratory Sciences released new data to the Fourth National Report on Human Exposure to Environmental Chemicals, an ongoing biomonitoring assessment of the U.S. population?s exposure to environmental chemicals.

The Updated Tables, August 2014 provides nationally-representative biomonitoring data from CDC?s National Health and Nutrition Examination Survey (NHANES) that has become available since the publication of the Fourth Report in 2009. The August 2014 report includes updated tables for 129 chemicals and 70 chemicals that have been added. This release also includes previous updates to the tables and provides new data for some metals, phthalates, and volatile organic compounds (VOCs).

The Updated Tables in this release include chemicals that have results available from the NHANES survey periods 2007-2008 or 2011-2012. New chemicals measured for the first time include ethyl mercury, methyl mercury, selenium, and manganese. Urinary metabolites of several volatile organic compounds and urine manganese, strontium, and tin were measured in a special sample of adult smokers and nonsmokers.

Please note: the July 2014 Updated Tables were withdrawn on August 8 after NHANES discovered a sampling weight error. The Updated Tables, August 2014, includes NHANES 2011-2012 data not affected by this error. When the corrected files are available from NHANES, the CDC will add those tables to a future release.

The Updated Tables, August 2014 and additional resources are now available at the CDC’s National Report on Human Exposure to Environmental Chemicals. The website also contains details of the Data Sources and Data Analysis, Interpretation of Report Data, and Chemical and Toxicological Information that pertain to the Updated Tables.