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Concentrations of the endocrine disrupter bisphenol A (BPA) were determined for three water samples from the watershed of Charleston, IL, USA. The analytical approach employed solid phase extraction in conjunction with GC/MS-SIM analysis and yielded a limit of detection of 30 ppt (parts per trillion). The local waterways Town Branch. Cassel Creek and Embarras River showed concentrations of 58(11) ppt, 89(3) ppt, and 32(9) ppt respectively. Additional measurements of BPA availability from aqueous laboratory extractions of a commercial PVC pond liner have been initiated. Preliminary results indicate significant BPA release from the pond liner, dependent upon extraction conditions.
Bills, Brandon, "Analysis of Bisphenol A (BPA) in Local Waters and in PVC Pond Liner" (2012). Undergraduate Honors Theses. 27.