What are the PFAS levels in fertilizer and other soil products coming onto the Island?

We know biosolid-based fertilizers often contain some level of detectable PFAS.4 Recent studies found that fertilizer products generally had higher PFAS concentrations than soil amendments containing biosolids, such as co-compost. However, fertilizers are typically added in smaller amounts than soil amendment products, suggesting that PFAS levels in bulk soil is lower when using fertilizers than when using soil amendment products. FAQ #9 includes actions you can take to reduce exposure to PFAS from fertilizers and soil amendments, including co-compost.

According to the Water Environment Federation, one’s exposure to PFAS from biosolids is unlikely and small. Risk Assessments from many states show that direct contact, breathing in, or ingestion (eating) of typical biosolids (such as residuals on grown vegetables) do not pose a significant health risk. - Water Environment Federation, Biosolids Communication Toolkit (https://www.wef.org/globalassets/assets-wef/3---resources/topics/a-n/biosolids/biosolids-communications-toolkit.pdf)

Cited Reference

  1. Kim Lazcano, R., Choi, Y.J., Mashtare, M.L. and Lee, L.S., 2020. Characterizing and comparing per-and polyfluoroalkyl substances in commercially available biosolid and organic non-biosolid-based products. Environmental Science & Technology, 54(14), pp.8640-8648.

Show All Answers

1. What can residents, businesses, and visitors can do to prevent exposure to PFAS?
2. Should I stop growing and eating vegetables using co-compost that may have PFAS?
3. Can I water my plants and garden with PFAS-contaminated water and eat that produce?
4. How can I limit my exposure to PFAS in my garden?
5. What are the PFAS levels in fertilizer and other soil products coming onto the Island?
6. Waste Options Nantucket makes products for beneficial re-use. What are they?
7. Is it safe to shower using domestic well water that contains PFAS?
8. Is it safe for me to bathe my baby using domestic (private) well water that contains PFAS?
9. What can I do as a private well owner to remove PFAS from my water?
10. Am I at risk if I drink or drank water with PFAS above health standards?
11. Is there a way to test my or my family’s blood serum levels for PFAS?