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Vermont becomes first US state to ban paraquat herbicide over Parkinson’s fears’
Key Excerpts from Article on Website of The Guardian
Posted: June 10th, 2026
https://www.theguardian.com/environment/2026/may/26/vermont-...
Vermont is the first US state to ban the weedkilling pesticide paraquat, backed by lawmakers who cited concerns about research showing the chemical substantially increases the risk of the incurable brain ailment known as Parkinson’s disease. Phil Scott, the governor, signed the legislation on Tuesday. The new law takes effect on 1 November, though it contains a provision allowing state regulators to issue special permits for paraquat use on fruit-producing tree orchards, berries and other “small fruit” crops up until 31 December 2030. Early versions of the law pointed to multiple studies by the National Institutes of Health have demonstrated that paraquat exposure substantially increases the risk of Parkinson’s disease in those exposed to the herbicide. Lawmakers also noted that other NIH studies have linked paraquat to non-Hodgkin lymphoma and childhood leukemia. Ray Dorsey, a neurologist who directs research into environmental causes of brain diseases at Atria Health and Research Institute, said Vermont’s action was “another step toward preventing this largely man-made disease”. He said that many countries had banned paraquat and said it “is long overdue for the US to do the same”. Numerous scientific studies have found that paraquat damages cells in the brain in ways that can lead to Parkinson’s, and more than 8,000 lawsuits are pending in US courts over the Parkinson’s allegations.
Note: The 1982 neurotoxic contaminant MPTP case was a turning point in showing how a single toxin could instantly trigger Parkinson’s by destroying a specific part of the brain. Scientists later discovered that paraquat — a widely used US pesticide banned in over 70 countries — attacks the brain in much the same way. As rates of Parkinson’s have tragically surged especially among the farming community, neurologists now say the disease is largely environmentally caused, driven by long-term exposure to chemicals like paraquat. A 2024 Politico article put it bluntly: “Parkinson’s is a man-made disease.”
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