Stricter Limits Proposed on 'Forever Chemicals' in Australian Water Supply

The Australian National Health and Medical Research Council (NHMRC) has released draft guidelines proposing reduced maximum levels for four key PFAS chemicals in drinking water. These "forever chemicals," known for their persistence in the environment, include PFOS, PFOA, PFHxS, and PFBS. The new guidelines, expected to be finalised in April 2025, aim to inform state and territory policies but are not mandatory. 

While the update demonstrates Australia's commitment to public safety, its impact on drinking water quality is likely to be minimal. Most potable water supplies in Australia either have no detectable PFAS or already have levels below the new proposed limits. The guidelines were revised based on recent studies, particularly those examining PFAS effects on thyroid function and the International Agency for Cancer Research's classification of PFOS as "possibly carcinogenic to humans".

The NHMRC's review considered both animal studies and human epidemiology to determine safe exposure levels. The proposed limits for PFOS, PFOA, PFHxS, and PFBS are set at concentrations well below those shown to have no effect on animal health, with an additional safety buffer. These guidelines are now open for public consultation until November 22, 2024, with final guidelines expected in April 2025.

With these stricter PFAS limits, advanced filtration technologies are crucial for ensuring drinking water safety. Our PFAS removal technology, Puratech, offers a proven solution to meet these updated guidelines and protect public health.

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