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March 8 - 12, 2021


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Per- and Polyfluoroalkyl Substances in Home Grown Produce – a Real Life Study in Minnesota

  • Session Number: S31-04
Thursday, March 11, 2021: 10:30 AM - 11:05 AM


Carin Huset
Research Scientist
Minnesota Department of Health
Kitrina Barry
Minnesota Department of Health


Groundwater in several Twin Cities communities has been contaminated with per- and polyfluoroalkyl substances (PFAS) for many years . While exposure to PFAS through drinking water had been assessed and addressed, the Minnesota Department of Health was concerned about other exposure routes, including the use of untreated water for garden irrigation. A study funded by the Minnesota Pollution Control Agency was conducted to assess PFAS in home-grown produce, soil, exterior tap water, and house dust in the affected communities. The analytical methods developed in support of this work used homogenization and a dispersive solid phase extraction to prepare samples in a variety of produce types. Isotope dilution and LC/MS/MS was used for quantification of seven PFAS of interest in produce.

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