Tests Show Bootleg Marijuana Vapes Tainted With Hydrogen Cyanide

NBC News commissioned laboratory tests of knock-off marijuana vapes that found a pesticide linked to hydrogen cyanide in 10 out 10 products

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The soaring popularity of vaping products — both legal and knock-offs — is fueling a public health crisis that has vexed the medical community, NBC News reports.

Some 12 people have died from mysterious lung illnesses linked to vape pens, and 805 others have been hospitalized in 46 states, according to federal health officials.

Seeking answers, NBC News commissioned one of the nation's leading cannabis testing facilities to test a sampling of THC cartridges — 18 in all — obtained from legal dispensaries and unlicensed dealers.

Of the three purchased from legal dispensaries in California, the CannaSafe testing company found no heavy metals, pesticides or residual solvents like Vitamin E.

But 13 out of the other 15 samples from black market THC cartridges were found to contain Vitamin E. CannaSafe also tested 10 of the unregulated cartridges for pesticides. All 10 tested positive.

The products all contained myclobutanil, a fungicide that can transform into hydrogen cyanide when burned.

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