Using wastewater-based analysis to monitor the effects of legalized retail sales on cannabis consumption in Washington State, USA.
Daniel A BurgardJason R WilliamsDanielle WestermanRosie RushingRiley CarpenterAddison LaRockJane SadetskyJackson ClarkeHeather FryhleMelissa PellmanCaleb J Banta-GreenPublished in: Addiction (Abingdon, England) (2019)
A wastewater-based measure of cannabis consumption suggests a significant increase in consumption in Washington, USA following legalization, and that legal sales appear to have displaced a large portion of the illicit market.