Positive marijuana drug tests among U.S. employees hits record high in 2021
By Daniel Miller April 8, 2022 @ www.fox2detroit.com
WASHINGTON - Positive marijuana drug tests for employees soared in U.S. workplaces last year, according to Quest Diagnostics' annual drug index published on March 30.
Quest Diagnostics, one of the nation's largest drug testing laboratories, reported that employees testing positive for marijuana spiked across all job industries from 2017 to 2021. Food service jobs had the highest number of positive marijuana drug tests at 7.5%.