How Sewage Sludge in Agriculture Contaminates Crops with PFAS

A significant issue has arisen as sewage sludge, a byproduct of wastewater treatment, has been repurposed as fertiliser on agricultural lands. This sludge, which contains PFAS from industrial and household waste, is applied to millions of acres of U.S. farmland. Once in the soil, PFAS are absorbed by crops and livestock, posing serious risks to the food supply and human health. The chemicals are linked to cancer, immune system suppression, and developmental issues. Despite growing evidence of widespread contamination, regulations remain insufficient, with states like Maine taking action to ban the use of sludge as fertilizer. Addressing the issue may require not only stricter regulations but also reducing the production and use of PFAS at the source. 

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