More than 100 toxic chemicals in cannabis smoke: U of A researchers

A joint contains almost 2,600 chemicals – some linked to genetic mutation, cancer, and birth defects, new study shows

University of Alberta engineering researchers found 2,575 chemical compounds in marijuana smoke. They identified 536 chemicals, 110 known to be toxic. The chemicals are either carcinogenic, mutagenic or teratogenic, which means they can interfere with the development of a fetus or embryo.

The researchers found more toxic chemicals in tobacco (173), but they found the particles in cannabis smoke were about 29 per cent larger.

Read the new study, “Comprehensive Characterization of Mainstream Marijuana and Tobacco Smoke,” which was published in Scientific Reports.

Sarah Murphy/Alberta Press Leader

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