University of Notre Dame scientists discovered high PFAS concentrations in the bands of numerous smartwatches and fitness trackers, especially fluoroelastomers, whose health implications have raised alarm.
Researchers at the University of Notre Dame recently discovered that many smartwatches and fitness trackers contain highly concentrated levels of per- and polyfluoroalkyl substances, also known as “forever chemicals”.
Key Findings
PFAS Concentration: Of 22 wristbands sampled, 15 had higher levels of PFAS. The most abundant was perfluorohexanoic acid (PFHxA).
Material Association: Bands made of fluoroelastomers, a synthetic rubber with high strength and resistance to sweat and oils, had particularly high levels of PFHxA.
Price Association: Higher-priced bands, particularly those costing more than $30, contained more fluorine than cheaper alternatives.
Health Impact:
PFASs are persistent environmental contaminants associated with diverse health concerns: liver injury, high cholesterol levels, thyroid disorder, obesity, diminished fertility, and certain types of cancer. There is also some concern for the dermal penetration of such substances, particularly if sweating may open skin to penetration of chemicals.
Recommendations
The authors advise minimizing exposure by choosing bands made from alternative materials, like silicone, that had lower levels of PFAS. Consumers are further encouraged to pay close attention to the descriptions accompanying their products and to avoid fluoroelastomer-containing bands.
Conclusion
The need for transparency in consumer products is brought forward, and further research on the health impacts of extended skin exposure to PFAS through wearable technology is also emphasized in this study.
