PFAS contamination poses a nationwide crisis. A new report confirms these toxic "forever chemicals" now affect 98% of tested US waters. Researchers found elevated levels at 95% of sampled sites downstream from wastewater treatment plants (WWTPs). Similarly, 80% of sites downstream from biosolids land application sites showed increased PFAS levels.
The report expanded on previous findings using multi-phase monitoring. It focused on areas downstream from WWTPs and permitted biosolids application fields, particularly in disproportionately impacted communities across 19 states. Researchers used advanced passive samplers. These devices captured PFAS contamination levels over extended periods, offering more accurate insights than traditional methods.
The widespread contamination is undeniable. PFAS were detected at 98% of all sampling sites. This includes locations both upstream and downstream from WWTPs and biosolids application fields. This indicates a pervasive presence of these chemicals across the country's waterways.
Various types of PFAS were most frequently detected. WWTPs often showed PFOA, PFHxA, and PFOS. Biosolids sites commonly revealed PFBA and PFHxA. Furthermore, total PFAS levels exceeded health-based criteria at all WWTP sites and 90% of biosolids locations. Some sites even surpassed federal drinking water thresholds for dangerous compounds. Unregulated PFAS chemicals also significantly contributed to downstream increases.
