CDC's National Report on Human Exposure to Environmental Chemicals, Updated Tables, July 2010
http://www.cdc.gov/exposurereport/
http://www.cdc.gov/exposurereport/
"Today, the Centers for Disease Control and Prevention (CDC) posted on its website updated data tables for the National Report on Human Exposure to Environmental Chemicals, an ongoing assessment of the U.S. population's exposure to environmental chemicals using laboratory technology known as biomonitoring."
