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Potatoes Added to Dirty Dozen Over Pesticide Concerns

3/29/2026

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Summary

Story summary

The Environmental Working Group added potatoes to its Dirty Dozen list due to pesticide residues, notably chlorpropham.
Chlorpropham, banned in Europe since 2019, remains approved in the United States and is used to prevent sprouting.
Dr. Cory Fisher of the Cleveland Clinic says there is no consensus on health risks from chlorpropham, and notes 90% of potato samples tested positive, even after washing, highlighting exposure concerns.

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Story summary

The Environmental Working Group added potatoes to its Dirty Dozen list due to pesticide residues, notably chlorpropham.
Chlorpropham, banned in Europe since 2019, remains approved in the United States and is used to prevent sprouting.
Dr. Cory Fisher of the Cleveland Clinic says there is no consensus on health risks from chlorpropham, and notes 90% of potato samples tested positive, even after washing, highlighting exposure concerns.