Evaluation of Pesticides Found in Oregon Cannabis from 2016 to 2017.

Pesticide use and worker exposures to pesticides in the US cannabis industry have not been studied due to cannabis being illegal at the federal level. Without knowing the types of pesticides being used in this industry, it is difficult to assess whether workers are being exposed to potentially dangerous pesticides. When recreational cannabis became legal in the state of Oregon in 2014, the Oregon Department of Agriculture (ODA) published a list of recommended pesticides for use in the cannabis industry and developed the state's pesticide testing regulations for all cannabis products, medicinal and recreational. Using the state's pesticide testing data, the aim of this study was to investigate the types of pesticides being used in the Oregon cannabis industry and if they present a hazard to cannabis workers. Both recreational and medicinal cannabis samples contained high levels of residual pesticides and pesticides not legally allowed to be used on cannabis products. Medicinal cannabis products were found to have mean levels of residual pesticides that were 3-12 times higher than recreational products. Nine of the 50 pesticides identified were classified highly or extremely hazardous by the World Health Organization. © The Author(s) 2019. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

Citation

Richard Evoy, Laurel Kincl. Evaluation of Pesticides Found in Oregon Cannabis from 2016 to 2017. Annals of work exposures and health. 2020 Aug 06;64(7):770-774

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PMID: 31621879

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