One of the big questions in marijuana research has been answered

 In Health, Medical Marijuana

That’s how much marijuana is in the typical American joint, according to a rigorous statistical analysis recently published in the journal Drug and Alcohol Dependence by drug policy researchers Greg Ridgeway of the University of Pennsylvania and Beau Kilmer of the Rand Corp.

The amount of weed in the typical joint is actually an important quantity for researchers and policymakers to know. Marijuana is often sold by the joint in both legal and illegal markets. If you want to know how much weed people are consuming — which is highly important for things such as tax projections and public health studies — you need to know how much weed is in those joints.

In the past, researchers have relied on some fairly comical methods to figure out how much weed was in the typical joint. In one study, scientists had marijuana users measure out quantities of oregano that they felt were equivalent to a typical joint, but that didn’t work — the estimates were all over the place, and “the relative density of oregano to marijuana is unknown,” as Ridgeway and Kilmer dryly note.

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