Surface detection of THC attributable to vaporizer use in the indoor environment

12/9/19–The goal of this study was to determine whether cannabinoids can be quantitatively detected on room surfaces exposed to side-stream cannabis vapor, making these surfaces possible sources for third-hand exposure. Study results show that in a room in which cannabis was administered by vaporization, surfaces tested positive for THC at quantifiable levels. This study represents a first step in understanding how side-stream cannabis vapor deposits in the environment and may result in tertiary exposure to users and bystanders. Read