New marijuana rules get tougher on pesticides in Oregon cannabis industry

Starting next year, recreational and medical marijuana sold in Oregon must be screened for nearly 60 pesticides commonly used in cannabis cultivation.

Labs analyzing pesticides will have to be accredited by the state, a rigorous process designed to ensure they are using appropriate equipment and scientific methods.

Labs, not growers or processors, will be required to take samples from every batch. Marijuana concentrates, which tend to be contaminated at higher levels than flowers, must be tested before they go onto store shelves or used to make edible products.

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