Levels of bisphenol-A in different paper products in Guangzhou, China, and assessment of human exposure via dermal contact

摘要: Bisphenol A (BPA) is a chemical widely used both in plastics production as food and beverage container thermal papers color developer. Dietary consumption the main route of human exposure to BPA, but dermal absorption through handling different might be underestimated or ignored. In this study, BPA paper products, including types papers, receipts Chinese currencies, were investigated. was detected (n = 87) currencies 46) with concentrations 0.17–2.675 × 104 μg per g 0.09–288.55 paper, respectively. Except for parchment 3), copy 3) contact measured all other levels 0.01–6.67 paper. transferred from common increased increasing pressure. Compared that water, migration speed doubled synthetic sweat. Washing hands could reduce exposure, washing lotion most efficient way. However, about 19–47% still found on after methods. Dermal via estimated 36.45 ng day general population 1.54 10−3 248.73 cashier. These values are below maximum doses recommended by U.S. Environmental Protection Agency European Food Safety Authority. due its uncertain adverse effects beings, long-term should paid more attention, particularly some occupational populations.