2004 Volume 59 Issue 4 Pages 403-408
Objective: The daily bisphenol A (BPA) intake level of Japanese pregnant women was surveyed based on the measurement of the urinary excretion level of a BPA metabolite.
Methods: Spot urine samples were collected from 56 pregnant women who visited the gynecology division of a hospital for a routine health check between June and October 2003. The urinary concentrations of the BPA metabolite and creatinine were measured by GC/MS/MS and spectrophotometry, respectively. Daily BPA intake was assumed to be equal to daily excretion.
Results: The daily intake of BPA among Japanese pregnant women was estimated to be in the range of <0.3 to 7.9μg/day (median<2.0μg/day), being consistent with the levels in previous studies for non-pregnant Japanese women. This level was far below the current Acceptable Daily Intake (0.01mg/kg/day) which was set by the European Commission. The maximum estimated intake per body weight (0.16μg/kg/day) reached 1/10 of the Lowest Adverse Effect Level of BPA for pregnant mice for a reproductive effect on the offspring (2μg/kg/day).
Conclusion: It is desirable to lessen BPA intake from a precautionary viewpoint, particularly in pregnant women.
