The UK Health Security Agency (UKHSA) is examining samples from Health Survey England to estimate exposure to PFAS and other chemicals in the UK population and build a baseline for future health research.
The study will analyze blood and urine samples collected through the survey. Along with PFAS, testing will cover lead, arsenic, bisphenols, phthalates and flame retardants. UKHSA expects initial findings from its biomonitoring program in 2027.
PFAS are synthetic chemicals used in industrial processes and consumer products. Their persistence in the environment has drawn attention, but UKHSA says important questions remain about what different exposure levels mean for long-term health.
The agency said the strongest evidence so far points to a possible association between PFAS and raised cholesterol, and a potential association with lower birth weight. Further research is needed to assess the significance of those findings. UKHSA said current evidence suggests any health effects are likely to be limited.
UKHSA does not recommend routine blood tests for PFAS. The agency said a test result would not currently determine a clinical response, because no established intervention is tied to a particular PFAS level in blood. People with health concerns should consult a general practitioner (GP) or another health care professional, it said.
The study is part of broader work to assess PFAS exposure. UKHSA said the independent Committee on Toxicity is reviewing evidence on PFAS and health effects. The government’s PFAS Action Plan takes a precautionary approach, and restrictions apply to some PFAS uses in certain products and applications.
UKHSA expects the first findings in 2027 to provide an initial picture of background chemical exposures across the population.
