Pubdate: Fri, 10 Jul 2009
Source: Honolulu Advertiser (HI)
Copyright: 2009 The Honolulu Advertiser
Bookmark: (Drug Testing)


The number of workers testing positive for marijuana use is on the 
rise, according to a new report from the state's leading workforce 
drug-testing company.

Diagnostic Laboratory Services reported yesterday that positive test 
results for THC, the main active chemical in marijuana, rose 8 
percent in the second quarter from the same period last year, and 69 
percent from the second quarter of 2007.

DLS also said 2.7 percent of those who took pre-employment drug tests 
during the April-June period tested positive for marijuana. That was 
up from 1.6 percent in the second quarter of 2008, and was the 
largest percentage since the company began keeping records in 2004. 
DLS said its quarterly sample size typically includes between 5,000 
to 10,000 drug tests.

Positive tests for amphetamines, cocaine and opiates were roughly the 
same over the past year, said Carl Linden, the lab's scientific 
director of toxicology.

Linden said one reason for the higher marijuana use could be that 
illegal drug users are opting for less expensive drugs because of the 
economic downturn. However, he emphasized that there was no hard 
evidence to confirm that.

Michelle Yu, spokeswoman for the Honolulu Police Department, said the 
numbers don't measure actual marijuana use, and the department avoids 
drawing any kind of relationship between drug-testing statistics and 
drug popularity.
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MAP posted-by: Jay Bergstrom