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ADVANCES IN REMEDIATION: PFAS PRECURSORS—DARK MATTER MENACE OR NEGLIGIBLE NOTHINGBURGER?
Divine, C., T.L. Torralba-Sanchez, T. Blount, T. Guillette, B. Miatke, and J. Lang.
Groundwater Monitoring & Remediation 46(1):10-20(2026)
Filed Under: General News
Filed Under: General News
PFAS precursors can act as a substantial long-term hidden source of regulated PFAAs, yet in many settings, strong sorption, limited mobility, analytical uncertainty, and slow transformation limit their practical impact on site management decisions. While dozens of terminal PFAAs can be measured, they represent only a fraction of the total PFAS mass potentially present. Many can act as precursors capable of converting into PFAAs. Whether hidden " dark matter" precursors are an important long-term driver of plume persistence, or mostly a chemically inert and immobile "nothingburger" locked up in soil pores, is an active debate. Scientific rationale and empirical laboratory and field observations for both perspectives are presented, followed by suggestions for practical considerations for investigation, data analysis, and visualization, conceptual site models, and site management strategies.
Groundwater Monitoring & Remediation 46(1):10-20(2026)
Filed Under: General News
Filed Under: General News
PFAS precursors can act as a substantial long-term hidden source of regulated PFAAs, yet in many settings, strong sorption, limited mobility, analytical uncertainty, and slow transformation limit their practical impact on site management decisions. While dozens of terminal PFAAs can be measured, they represent only a fraction of the total PFAS mass potentially present. Many can act as precursors capable of converting into PFAAs. Whether hidden " dark matter" precursors are an important long-term driver of plume persistence, or mostly a chemically inert and immobile "nothingburger" locked up in soil pores, is an active debate. Scientific rationale and empirical laboratory and field observations for both perspectives are presented, followed by suggestions for practical considerations for investigation, data analysis, and visualization, conceptual site models, and site management strategies.
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