The Invisible Threat in Our Everyday Life
A recent scientific study published in the journal ‘Environment International’ has revealed that the fearsome PFAS, known as ‘forever chemicals’, can be absorbed through human skin, thus entering our body without needing to be ingested. These potentially toxic chemical compounds are present in a wide range of everyday utensils and products, raising serious questions about their impact on human health.
The Persistence of PFAS
PFAS, or perfluoroalkylated substances, are characterized by their long persistence in the environment, which has earned them the nickname ‘forever chemicals’. Despite government regulations that have banned some of these substances, many continue to be used due to their water- and stain-repellent properties, present in consumer products such as school uniforms and personal care items.
The Dermal Route as a Route of Exposure
Contrary to previous belief, the study shows that PFAS can cross the skin barrier and reach the bloodstream of the human body. The study’s lead author, Oddný Ragnarsdóttir, from the University of Birmingham, said absorption through the skin could represent a significant source of exposure to these harmful chemicals, challenging the previous theory of their inability to penetrate the skin membrane. .
Disturbing Results
The study revealed that 15 of the 17 PFAS analyzed showed substantial dermal absorption, with some substances being absorbed at significant rates, raising concerns about long-term effects on human health. Furthermore, it was observed that the length of the carbon chain within the molecule affects the amount absorbed, with shorter chain substances being absorbed more easily.
Importance of Research
The study, which used 3D models equivalent to human skin for its experiments, highlights the importance of considering exposure to a wide range of toxic chemicals through the skin. The findings suggest the need to better understand the risks involved in exposure to these chemicals, especially in a context where the industry is adopting compounds with shorter chain lengths, in the mistaken belief that they are less toxic.
Call to Consciousness and Action
The study raises the need for greater awareness about exposure to toxic chemicals present in everyday consumer products. Furthermore, it highlights the importance of future research that addresses the risk posed by the broad range of these substances, rather than analyzing them individually. This call to action seeks to foster a deeper understanding of the risks involved in exposure to these chemicals, both through the skin and through other routes.