BERKELEY, Calif.Oct. 19, 2016 /PRNewswire/ — Steep Hill, the global leader in cannabis testing and analytics, today published an early report on the prevalence of pesticide contamination in the medical cannabis supply chain in California. According to the lab’s new technology and recently launched “quantified pesticide analysis,” 84.3% of cannabis samples submitted in Steep Hill’s Berkeley lab tested positive for pesticide residues. These results were significantly higher than expected and are cause for concern for California cannabis consumers.

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