The UK government has stated that there is no clinical benefit to individuals undergoing blood tests for per- and polyfluoroalkyl substances (PFAS), commonly known as 'forever chemicals'. This follows findings of PFAS contamination in local water supplies in the Blue Mountains, where at least 25 residents have paid $500 each for such tests.
A report by the NSW Health Expert Advisory Panel on PFAS, convened by Chief Health Officer Dr Kerry Chant, concluded that the health effects of PFAS appear to be small. The panel, comprising experts in cancer, hormone and heart health, epidemiology, and other fields, found that while some studies associate PFAS with health effects, the evidence is inconsistent and lacks a clear dose-response relationship.
The report emphasised that PFAS blood tests are unlikely to guide medical care, as the chemicals are detected in most people, there are many different types, and blood levels do not predict health outcomes. It warned that test results could cause unnecessary concern and lead to harmful interventions.
The panel recommended that if a healthcare provider orders a PFAS blood test, they should provide clear context about its limitations. It also suggested that doctors support concerned patients with usual preventative health measures, as many conditions potentially linked to PFAS are common and have well-established risk factors.
Community advocate Jon Dee, convenor of the Stop PFAS group, criticised the report, claiming it aims to reduce legal liability for Sydney Water rather than protect public health. The group is pursuing a class action against the New South Wales government and Sydney Water over the contamination.
