Heavy Metal Testing on Colorado’s Marijuana Expected in 2019

Independent news source Westword recently reported that according to Colorado’s Marijuana Enforcement Division (MED), commercial marijuana products sold in the state may be tested for toxic heavy metals as early as next year.  Fertilizers and other growing nutrients may have measured amounts of heavy metals, such as arsenic, cadmium, cobalt, mercury, lead, nickel, selenium, and zinc.  Even organic plant food may be contaminated thanks to environmental pollution.  Marijuana is highly effective at extracting nutrients from the soil, which could lead to higher levels of the heavy metals than the soil itself.  Currently, agriculture departments in California, Oregon and Washington have specific rules in place to regulate levels of marijuana nutrients in commercial products.

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