UK Launches First National Study to Track ‘Forever Chemicals’ Levels in Population

POLICY WIRE — London, UK — The British government has initiated its inaugural comprehensive investigation to measure the concentration of substances commonly known as ‘forever chemicals’ within the UK population.

By analyzing blood and urine samples, the UK Health Security Agency (UKHSA) aims to clarify the potential dangers associated with PFAS, as well as monitoring for other contaminants such as arsenic and lead.

While current scientific data suggests the direct health impacts of PFAS may be limited for many, the most significant correlations identified in large-scale studies involve elevated cholesterol levels and lower birth weights in infants.

The initial findings from this research project are scheduled for release next year.

Per- and polyfluoroalkyl substances, or PFAS, have been widely utilized since the 1940s and 1950s due to their extreme resistance to heat, oil, and water.

These properties have led to their inclusion in thousands of consumer products, ranging from cookware and apparel to specialized firefighting foams.

Because these chemicals do not easily degrade in the environment—earning them their somber nickname—they have sparked significant public health concerns in recent years.

Two specific variants, PFOA and PFOS, are currently prohibited in the UK because the World Health Organization warns that long-term exposure to them can elevate cancer risks.

The study of PFAS remains a developing field, with over 15,000 different types currently requiring further research.

The UKHSA will utilize the existing Health Survey for England to collect the samples necessary for establishing baseline levels of PFAS, bisphenols, phthalates, flame retardants, lead and arsenic.

In a conversation with BBC Radio 4’s Inside Health, Dr. Edward Wynne-Evans, the director of radiation, chemicals, climate and environmental hazards at the UKHSA, noted that there remain knowledge gaps regarding how specific exposure levels affect an individual’s health over the long term.

Anxiety is rising among residents living near areas contaminated by the two known toxic PFAS, leading some to seek out private blood testing.

In September, blood tests revealed “really high levels” of PFOA—a cancer-linked forever chemical—in dozens of individuals who were residing near a major chemical manufacturing facility.

However, Wynne-Evans explained that the UK government does not advise routine individual PFAS blood tests because there is currently no “established clinical intervention” available for those with high levels.

He stated that the agency would not typically recommend a test if there is no specific course of action that can be taken based on the results.

He emphasized that the study is intended to “build an evidence base to better understand what might be happening.\

Prior to the announcement, Prof. Tony Fletcher of the London School of Hygiene & Tropical Medicine expressed his belief that low levels of PFAS exist in the blood of nearly everyone.

Fletcher remarked that a random sample from any person’s blood would likely show low-level presence of these chemicals.

He clarified that while the population is not facing immediate mortality from these substances, higher concentrations in large-scale populations have been linked to adverse health outcomes.\

For the banned PFOA and PFOS compounds, documented risks include increased cholesterol, cancer risk, reduced antibody responses to childhood vaccines, and various endocrine issues related to the thyroid and birth weight.

Fletcher mentioned that he has met with residents in contaminated areas who are understandably angry.\

He noted he attempts to explain that while causal links exist between exposure and health effects in large groups, the statistical likelihood of an individual developing a specific disease or adverse effect remains quite low.\

He concluded that the primary objective must be halting ongoing exposure to prevent potential long-term consequences.

Reporting by Policy-Wire (PW)