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    Es könnte über 40 Jahre dauern, bis PFAS das Grundwasser verlässt


    Es könnte über 40 Jahre dauern, bis PFAS das Grundwasser verlässt

    https://news.ncsu.edu/2024/10/it-could-take-over-40-years-for-pfas-to-leave-groundwater/

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    6 Comments

    1. giuliomagnifico on

      >The researchers tested the samples they took to determine PFAS types and levels, then used groundwater age-dating tracers, coupled with atmospheric contamination data from the N.C. Department of Environmental Quality and the rate of groundwater flow, to create a model that estimated both past and future PFAS concentrations in the groundwater discharging to tributary streams.
      >
      >They detected PFAS in groundwater up to 43 years old, and concentrations of the two most commonly found PFAS – hexafluoropropylene oxide-dimer acid (HFPO−DA) and perfluoro-2-methoxypropanoic acid (PMPA) – averaged 229 and 498 nanograms per liter (ng/L), respectively. For comparison, the maximum contaminant level (MCL) issued by the U.S. Environmental Protection Agency for HFPO-DA in public drinking water is 10 ng/L. MCLs are enforceable drinking water standards.

      Paper: [Forecasting and Hindcasting PFAS Concentrations in Groundwater Discharging to Streams near a PFAS Production Facility | Environmental Science & Technology](https://pubs.acs.org/doi/10.1021/acs.est.4c06697)

    2. WildRide1041 on

      I’m angry and disgusted with the capitalist system and the Fed Gov that allowed corporations to pollute Americas soil, drinking water and air for the price of admission.

    6. CandusManus on

      Honestly, this almost sounds like good news. I was of the opinion that it would take hundreds so the fact that my kid’s generation could deal with dramatically lower pfas would be a huge win.

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