Michael W. DeGregorio

July 7, 2022

Examining impairment and kinetic patterns associated with recent use of hemp-derived Δ8-tetrahydrocannabinol: case studies

Abstract Background: As a result of the legalization of U.S. industrial hemp production in late 2018, products containing hemp-derived Δ8-tetrahydrocannabinol…

May 18, 2022

Indeterminacy of cannabis impairment and ∆9-tetrahydrocannabinol (∆9-THC) levels in blood and breath

Abstract Previous investigators have found no clear relationship between specific blood concentrations of ∆9-tetrahydrocannabinol (∆9-THC) and impairment, and thus no…

November 23, 2021

A comprehensive breath test that confirms recent use of inhaled cannabis within the impairment window

Abstract Legalization of cannabis for medicinal and/or recreational use is expanding globally. Although cannabis is being regulated country by country,…