The UK Health Security Agency has initiated its first comprehensive study examining levels of PFAS, commonly known as ‘forever chemicals,’ within the British population. The research will involve collecting blood and urine samples from participants to establish baseline exposure levels and assess potential health risks associated with these substances, along with other contaminants including lead and arsenic.
PFAS are a large group of synthetic chemicals that have been widely used since the 1940s and 1950s due to their resistance to water, oil, and heat. These properties have made them valuable in manufacturing thousands of products ranging from non-stick cookware and textiles to firefighting foams. However, their resistance to environmental breakdown has generated growing health concerns. Two specific PFAS compounds—PFOA and PFOS—have already been banned in the UK following evidence linking prolonged exposure to increased cancer risk, according to the World Health Organization.
The UKHSA indicates that current evidence suggests health impacts from PFAS exposure may be limited, though research has identified possible associations with elevated cholesterol and lower birth weights in large population studies. The study will utilize existing samples from the Health Survey for England to establish comparative data on PFAS exposure alongside other chemical contaminants and flame retardants.
According to Dr. Edward Wynne-Evans, director of radiation, chemicals, climate and environmental hazards at the UKHSA, significant knowledge gaps remain regarding what different exposure levels mean for individual long-term health outcomes. He noted that the UK government does not currently recommend routine PFAS blood testing for individuals because there is no established clinical intervention for those with elevated levels. The research is expected to provide results later this year and will help inform future public health policy regarding these substances.
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