New report finds highest-ever levels of THC in U.S. marijuana
"Today, the Office of National Drug Control Policy (ONDCP) and the National Institute on Drug Abuse (NIDA) released the latest analysis from the University of Mississippi's Potency Monitoring Project, which revealed that levels of THC - the psychoactive ingredient in marijuana - have reached the highest-ever amounts since scientific analysis of the drug began in the late 1970s. According to the latest data on marijuana samples analyzed to date, the average amount of THC in seized samples has reached a new high of 9.6 percent. This compares to an average of just under 4 percent reported in 1983 and represents more than a doubling in the potency of the drug since that time."