PFAS 'forever chemicals' are everywhere, even in your bathroom.
“These transformed species are often more polar and bound to soils and sediment to a greater degree, making them more persistent,” says Burton, who was not involved in the study. “In addition, as these compounds build up in soils and sediments over time, they are more available for [uptake] by soil- and sediment-dwelling invertebrates, and thus pose a food chain contamination threat.”
Based on their findings and data about PFAS levels in sewage and per capita toilet paper use in other countries, the authorsthat toilet paper can contribute about 35 percent of the 6:2 diPAP in wastewater sludge in Sweden, 89 percent in France, but only around four percent in US and Canada. The impact of toilet paper in Sweden and France is higher because they have much lower 6:2 diPAP concentrations in wastewater sludge compared to North America.
Furthermore, North America uses more toilet paper than other countries, suggesting that 6:2 diPAPs in US wastewater systems mostly come from other sources, like cosmetics, textiles, and food packaging, which are also worth looking into. The authors hope that by understanding potential PFAS sources, policymakers become “better equipped to address the challenge of PFAS,” says Thompson.
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