Cannabis use increased and substantially shifted from the illicit market since retail sales began in 2014, finds a new study based on analysis of public wastewater samples from Western Washington, suggesting that many established users switched very quickly from the illegal to the legal market.

Cannabis use increased and substantially shifted from the illicit market since retail sales began in 2014, finds a new study based on analysis of public wastewater samples from Western Washington, suggesting that many established users switched very quickly from the illegal to the legal market.: http://bit.ly/31FdiXP Read more... http://bit.ly/2KrgzV5