2023-11-14 12:49:28
And it’s an American study published in the scientific journal “Environmental Science and Technology Letters” in 2020 which particularly caught our attention. Researchers from Duke University in North Carolina tested different filters in around seventy homes in this state on the east coast of the United States, in regions known for their risk of PFAS contamination.
Among the filters tested: filter jugs, single or double filters installed under sinks or even reverse osmosis filters. Not everyone is equally effective, far from it. Only the most expensive solutions seem to be the best.
Activated carbon is a good possibility
The filter jugs, first of all, which contain activated carbon, show relative, but very present, effectiveness. On average, the study estimates that they eliminate 50% of PFAS that were in the water before being filtered.
For Alfred Bernard, expert in toxicology, professor emeritus at UCLouvain and research director at the FNRS, this is not surprising. “Activated carbon is a good possibility., he explains. “The advantage of these cartridges is that it will eliminate a good portion of PFAS, but it will also eliminate chlorination by-products which are much more concentrated and also pose public health problems. But it will not eliminate all contaminants from drinking water“.
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