Cannabis brands are legally required to include THC levels on product labels sold in dispensaries; along with test results regarding the presence of heavy metals, toxins and pesticides. But inaccurate ...

BOULDER, Colo. (KKTV/Gray News) – Researchers at the University of Colorado Boulder are trying to develop a breathalyzer that would track marijuana impairment levels in real-time. Although it has been ...

Colorado requires marijuana growers and manufacturers of edibles and concentrates to test for mold, yeast and certain heavy ...

A study of drivers killed in crashes during a six year period in Montgomery County, Ohio, found nearly 42% had high levels of THC in their blood when they died.

A new Wright State University study finds that over 40% of fatal car accident victims had elevated THC levels in their blood, with average concentrations far exceeding legal limits.

New study findings show that over 40% of drivers who died in motor vehicle collisions tested positive for active ...