Cannabis testing reveals biopesticide contamination


    Published on June 13, 2018 8:48AM Last changed on June 13, 2018 8:59AM Mandatory testing of cannabis in Oregon has revealed several biopesticides contaminated with more highly regulated chemicals, prompting regulators to halt sales of the products. The problem has led the Oregon Department of Agriculture to believe such contamination probably is not limited to marijuana, this state or a certain pesticide product. “In a way, this kind of tipped us off that we could be seeing this in other crops,” said Rose Kachadoorian, ODA’s pesticide registration and certification leader. “These pesticides are marketed nationally.” To complicate the situation, such contamination renders the pesticides adulterated and misbranded under Oregon law but it’s allowable under a federal policy adopted two decades ago by the U.S. Environmental Protection Agency. Before 1996, the EPA considered any level of impurity “toxicologically significant,” but then the agency changed its policy to allow up to 1,000 parts per million of contamination by certain other pesticides. The federal policy recognizes that low-level contamination may occur at large facilities that aren’t dedicated to one chemical and it’s primarily concerned with toxicity to plants, Kachadoorian said. Cannabis testing reveals biopesticide contamination

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