Abstract
When people handle receipts printed on thermal paper containing the endocrine disruptor bisphenol A (BPA), the chemical could linger in the body for a week or more (Environ. Sci. Technol. 2017, DOI: 10.1021/acs.est.7b03093). Jonathan W. Martin of Stockholm University and Jiaying Liu of the University of Alberta asked six male volunteers to handle paper containing isotopically labeled BPA for five minutes. The volunteers then put on nitrile gloves, wore them for two hours, removed them, and washed their hands with soap. Afterward, the researchers measured the labeled BPA and its metabolites in the volunteers’ urine regularly for two days and then once again a week later. Total BPA in the urine increased linearly over the first two days, and after a week, three of the volunteers still had BPA in their urine. In contrast, after the volunteers each ate a cookie containing labeled BPA, total BPA in their urine spiked
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