Wire report

Revealed: the undisclosed safety data emerging as weedkiller maker faces Parkinson’s lawsuits in US

Syngenta denies keeping relevant data from the EPA as paraquat stays in the US market despite global bans Sweden started ringing the alarm bell more than 20 years ago, calling for a ban on the weedkilling chemical paraquat in 2004. One by one, dozens of other countries did the same as evidence of paraquat risks to human health mounted. Even the Chinese government, which owns the longtime paraquat maker Syngenta , halted domestic use of the pesticide a decade ago after conducting its own studies on paraquat safety and finding troubling results. In the US, two states – Vermont and California – have recently also banned paraquat, citing risks that include an association between paraquat and Parkinson’s disease shown in years of scientific research. And California regulators announced in August that paraquat makers voluntarily agreed to stop selling the chemical after the state identified he

Image from linked report: Revealed: the undisclosed safety data emerging as weedkiller maker faces Parkinson’s lawsuits in US
Image from the linked report: Revealed: the undisclosed safety data emerging as weedkiller maker faces Parkinson’s lawsuits in US.Credit: The Guardian Thumbnail shown with attribution and outbound source link; VINI does not claim ownership or republish the original article body. Image source Image shown with attribution and an outbound source link; VINI does not claim ownership or republish the original article body.
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Why it mattersGlobal

Syngenta denies keeping relevant data from the EPA as paraquat stays in the US market despite global bans Sweden started ringing the alarm bell more than 20 years ago, calling for a ban on the weedkilling chemical paraquat in 2004. One by one, dozens of other countries did the same as evidence of paraquat risks to human health mounted. Even the Chinese government, which owns the longtime paraquat maker Syngenta , halted domestic use of the pesticide a decade ago after conducting its own studies on paraquat safety and finding troubling results. In the US, two states – Vermont and California – have recently also banned paraquat, citing risks that include an association between paraquat and Parkinson’s disease shown in years of scientific research. And California regulators announced in August that paraquat makers voluntarily agreed to stop selling the chemical after the state identified he

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What happened

According to The Guardian’s source item, Revealed: the undisclosed safety data emerging as weedkiller maker faces Parkinson’s lawsuits in US, Syngenta denies keeping relevant data from the EPA as paraquat stays in the US market despite global bans Sweden started ringing the alarm bell more than 20 years ago, calling for a ban on the weedkilling chemical paraquat in 2004. One by one, dozens of other countries did the same as evidence of paraquat risks to human health mounted. Even the Chinese government, which owns the longtime paraquat maker Syngenta , halted domestic use of the pesticide a decade ago after conducting its own studies on paraquat safety and finding troubling results. In the US, two states – Vermont and California – have recently also banned paraquat, citing risks that include an association between paraquat and Parkinson’s disease shown in years of scientific research. And California regulators announced in August that paraquat makers voluntarily agreed to stop selling the chemical after the state identified he

Context

The development sits in VINI’s Global file for readers following international affairs, institutions, conflict, diplomacy, economics, and cross-border consequences. The original report is linked so readers can check the source account, follow later updates, and compare new coverage against the first published record. The source item is dated 2026-09-25T12:00:50+00:00.

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Source

Primary source: Revealed: the undisclosed safety data emerging as weedkiller maker faces Parkinson’s lawsuits in US via The Guardian. VINI cites and links the source; it does not reproduce the publisher’s full article text without rights clearance.

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