Last year, 4.4% of U.S. workers tested positive for marijuana in workplace drug tests, up from 4.2% in 2017 and the highest level since 2004, says a Quest Diagnostic study of 10 million tests. Positive tests for opiates, heroin and cocaine all declined. Read our...
Positive tests for marijuana hit 14-year high in workplace.
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COPYRIGHT GALE, Cengage Learning. All rights reserved.
COPYRIGHT GALE, Cengage Learning. All rights reserved.