Objective To assess bisphenol A (BPA) exposure levels of workers and to provide basis for studying its doseresponse correlation.
Methods In 2010, local and personal airborne samples were taken in a resin factory. Spot urine samples of 154 workers from the resin factory and 109 workers from a control factory were collected before and after shifts to measure total BPA.
Results In the resin factory, 96.5% of the air samples were BPA detectable; the medians of creatinine-adjusted urinary BPA levels pre-and post-shift were 11.31 and 16.17 μg/g respectively, and the urinary BAP levels of post-shift was significantly higher than that of pre-shift (P < 0.05). In the control factory, the medians of creatinine-adjusted urinary BPA levels were 2.96 and 2.56μg/g respectively, which was significantly lower than those in the resin factory (P < 0.001), and one-side 95% upper bounds were 19.05 and 28.84 μg/g, respectively.
Conclusion Workers from the resin factory are occupationally exposed to BPA at a high level. It is necessary to control the occupational exposure level of BPA.
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