University of Birmingham Research Raises Concerns About PFAS Exposure
A recent study by the University of Birmingham has revealed that a class of chemicals known as perfluoroalkyl and polyfluoroalkyl substances (PFAS), often referred to as “forever chemicals,” can be absorbed directly through human skin. These chemicals are widely used in everyday products due to their non-stick and water-resistant properties. However, they are also known for their persistence in the environment and potential health risks.
Investigating PFAS Absorption Through Skin Models
The study, published in the journal Environment International, investigated the interaction of 17 commonly used PFAS chemicals with human skin models. The team used 3D human skin equivalent models, which mimic normal human skin, to conduct their experiments without using animals. They applied chemicals to these models to measure absorption, unabsorbed amounts, and retention.
Significant Skin Absorption Raises Concerns
The findings were concerning: a significant amount of these chemicals was absorbed through the skin within a 36-hour timeframe. This raises new concerns about the extent of human exposure to PFAS and the potential health consequences. Previously, ingestion and inhalation were considered the primary routes of PFAS exposure. This new research suggests that skin absorption may be another significant pathway, particularly with frequent or prolonged contact with PFAS-containing products.
Need for Further Research and Reevaluation
The long-term health effects of PFAS exposure are still being studied. However, these chemicals have been linked to various health problems, including cancer, immune system dysfunction, and developmental issues. This new information highlights the need for further research on the safety of PFAS and the potential risks associated with skin absorption. It may also prompt a reevaluation of regulations concerning these chemicals and the products that contain them.
