It Could Take over 40 Years for PFAS to Leave Groundwater
A study from North Carolina State University reveals PFAS may take over 40 years to dissipate from groundwater, affecting over 7,000 private wells and exceeding EPA contaminant levels.
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A recent study from North Carolina State University indicates that per- and polyfluoroalkyl substances (PFAS) could take over 40 years to fully dissipate from contaminated groundwater in Cumberland and Bladen counties, North Carolina. The research utilized a combination of PFAS data, groundwater age-dating tracers, and groundwater flux measurements to predict PFAS concentrations in groundwater flowing into tributaries of the Cape Fear River. The study found PFAS contamination affecting over 7,000 private wells and impacting agricultural land. The two most prevalent PFAS detected were hexafluoropropylene oxide-dimer acid (HFPO−DA) and perfluoro-2-methoxypropanoic acid (PMPA), with concentrations significantly exceeding the U.S. Environmental Protection Agency's maximum contaminant levels. The researchers noted that even with reduced atmospheric emissions since 2019, some PFAS will continue to enter groundwater, prolonging the contamination issue. The findings suggest that PFAS will remain a significant environmental concern for decades, with ongoing research planned to assess the health impacts related to PFAS levels in drinking water wells.
- PFAS may take over 40 years to clear from groundwater in North Carolina.
- The study highlights contamination affecting over 7,000 private wells.
- Detected PFAS levels significantly exceed EPA's maximum contaminant levels.
- Ongoing atmospheric deposition of PFAS could extend contamination duration.
- Future research will focus on health outcomes related to PFAS exposure.
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High Levels of PFAS 'Forever Chemicals' Found in Food and Drink Products – Study
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PFAS, known as "forever chemicals," pose serious health risks and persist in the environment. The EPA has set new drinking water limits, while experts call for stronger regulations and consumer awareness.
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Recent research from the University of Birmingham shows that PFAS can be absorbed through human skin, challenging previous beliefs. Short-chain PFAS are absorbed more readily, raising health risk concerns.
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