Dietary Exposure - Daily Intake of Bisphenol A (BPA) and Potential Sources of Exposure – 2005-2006 National Health and Nutrition Examination Survey (NHANES)

Author: LaKind and Naiman

Publication: Journal of Exposure Science & Environmental Epidemiology

Date: March 17, 2010

exposure

This study demonstrates once again that the average American’s exposure to BPA remains extraordinarily low. Results indicate that median daily intake of BPA is 34 nanograms per kilogram of body weight for the overall population. Additionally, while it was found that children are exposed to slightly higher levels of BPA than adults, these levels are still almost 1,000 times below recommended safe exposure limits.

At a Glance

What was tested?
Nationally representative data on urinary levels of BPA from the 2005-2006 National Health and Nutrition Examination Survey (NHANES) were used to estimate daily BPA intakes for the U.S. population.
Findings
Results indicate that median daily intake of BPA is 34 nanograms per kilogram of body weight for the overall population. Additionally, while it was found that children are exposed to slightly higher levels of BPA than adults, these levels are still almost 1,000 times below recommended safe exposure limits.
Study Limitations
None cited.
Importance
This study provides further evidence that BPA exposure levels in the U.S. are low in both adults and children, and the government bodies around the world have concluded that these levels of exposure do not pose a risk to human health at any age.