Sewer Sludge Is Dangerous to Health, EPA Says of Biosolids and PFAS
This sludge -- which is sometimes applied to farmland as fertilizer -- can contain high levels of chemicals called per- and polyfluoroalkyl substances, or PFAS, the EPA concluded in its review. Farmers who’ve fertilized their land with sludge for decades might have been exposed to risky levels of PFAS.