Experts express concern that the lack of regulation for numerous PFAS types leaves the public exposed to potential health risks.

The Australian National Health and Medical Research Council (NHMRC) has released draft guidelines proposing new limits for four per- and polyfluoroalkyl substances (PFAS) in drinking water.

Historically, authorities have downplayed concerns regarding PFAS, but there is now an acknowledgment of unsafe levels of these chemicals in water supplies.

Public consultation on these proposed changes is ongoing until November, with a final decision anticipated by April 2025.

Investigations revealed that millions of Australians have been consuming water contaminated with PFAS, despite assurances from water providers about safety.

The government is considering stricter regulations on acceptable PFAS levels in drinking water, urged to include a broader range of these chemicals as new types emerge.

These new guidelines, expected to be finalized by April 2025, aim to lower maximum levels for PFOS, PFOA, PFHxS, and PFBS compared to previous safety standards.

Testing in Sydney indicates that while most water is within proposed guidelines, some sources significantly exceed safe levels.

Management of PFAS involves both federal and state governments overseeing water quality regulations, with testing results expected to vary by state.

The NHMRC's guidelines are based on animal studies and human epidemiology, establishing safety limits with a significant buffer.

Investigative reports have highlighted connections between PFAS contamination and specific communities, raising awareness of the issue.

The proposed limit for PFHxS is set at 30 nanograms per litre, reflecting a growing recognition of the health risks associated with these chemicals.