Wastewater Study: Legalization and Marijuana Consumption Increase

Wastewater study shows increase in marijuana consumption after legalization

http://www.dailyuw.com/science/article_49c8b5dc-a1ec-11e9-8c01-63c6b1972af1.html

“Over a three year period we saw that cannabis consumption in wastewater increased by about 9% per quarter,” Burgard said. “But that wasn’t nearly as much as the 70% increase in the number of sales that went up each quarter.”