Thermal paper receipts are a common item in daily transactions, but they have raised concerns in the field of
toxicology due to the presence of chemicals like
Bisphenol A (BPA) and its alternatives. This article explores the potential health risks, mechanisms of exposure, and safer alternatives related to thermal paper receipts.
What Are Thermal Paper Receipts?
Thermal paper receipts are used in many cash registers and point-of-sale systems. These receipts are coated with a chemical that changes color when exposed to heat, thereby displaying the printed information. The most commonly used chemical in thermal paper is BPA, which acts as a
developer in the printing process.
Why Is BPA a Concern?
BPA is a synthetic compound that mimics the structure and function of the hormone
estrogen. It is known as an
endocrine disruptor, which can interfere with the body's hormone systems. Studies have linked BPA exposure to health issues such as reproductive disorders, cancer, and metabolic problems.
How Are We Exposed to BPA Through Receipts?
The primary route of exposure to BPA from thermal paper is
dermal absorption. When handling receipts, especially with wet or greasy hands, BPA can transfer from the paper to the skin and potentially enter the bloodstream. This is a concern for individuals who frequently handle receipts, such as cashiers and retail workers.
Are There Alternatives to BPA in Thermal Paper?
Due to the health concerns associated with BPA, some manufacturers have started using alternatives like
Bisphenol S (BPS) or other bisphenol analogs. However, these substitutes may not be free of risks. BPS, for example, has similar endocrine-disrupting effects, raising questions about the safety of these alternatives.
What Are the Regulatory Stances on BPA in Thermal Paper?
Various regulatory bodies have taken actions to limit exposure to BPA. The
European Union has restricted the use of BPA in thermal paper to reduce health risks. In the United States, some states have passed legislation to limit BPA in products, although there is no federal ban on its use in thermal paper.
Avoid taking receipts unless necessary, and opt for
digital receipts when possible.
If handling receipts is unavoidable, wash hands thoroughly afterward.
Encourage workplaces to adopt
BPA-free receipt paper options.
Are There Safer Alternatives to Thermal Paper?
Some safer alternatives to BPA-coated thermal paper include using
phenol-free paper or moving towards digital systems that eliminate the need for physical receipts. These options not only reduce chemical exposure but also promote environmental sustainability.
Conclusion
While thermal paper receipts are a small part of daily life, their potential health impacts due to BPA exposure are significant. Understanding the risks and taking proactive measures can help mitigate exposure. Continued research and regulatory actions are essential to ensure safer alternatives are adopted and public health is protected.
