Thermal paper facts, uses, benefits and BPA safety ® Copyright 2010 All rights reserved
According to a recent research paper in the journal Environmental Science and Technology, the estimated daily intake (EDI) values calculated for bisphenol A (BPA) found on flyers, magazines, tickets, mailing envelopes, newspapers, food cartons, airplane boarding passes, luggage tags, printing papers, business cards, napkins, paper towels and toilet paper were “several orders of magnitude” lower than the safety level established by the United States Environmental Protection Agency and the European Food Safety Authority. The safety level, or oral reference dose, is 50 µg/kg bw/day.
The highest occupational (or worst case) exposure found was for tickets (see Table 2 in the study, linked above), where the worst case was more than 31 million times lower than the established safety level.
The study is by the same authors who conducted the paper currency study, which showed that BPA levels in paper money present no health concern. The BPA levels in paper and paper products are even lower than those found in paper currency.
The authors claim that recycling of thermal paper receipts may be a source of BPA in paper and paper products but present no evidence for this speculation. Regardless of the source, the levels of BPA in paper and paper products are so low as to pose no health concern.