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The number of U.S. workers who tested positive for marijuana and other drugs jumped to a 14-year high in 2018, according to the drug-testing laboratory Quest Diagnostics Inc. Quest Diagnostics found that 2.3 percent of 10 million urine, saliva and hair samples from U.S. workers tested positive for marijuana in 2018, a 10-percent increase over the prior year. About 4.4 percent of samples contained some kind of illegal or legal drug, a 14-year high, The Wall Street Journal reports.

Marijuana use is increasing among US workers as more states legalize the drug for recreational and medical consumption, a new study from Quest Diagnostics found. The rate of US workers and job applicants who tested positive for all drugs - including opiates, cocaine, heroin, and marijuana - hit a fourteen year high last year, the study found based on an analysis of nearly 9 million urine tests.

Most employers in New York City would no longer be able to force job applicants to take drug tests for marijuana use, under a bill overwhelmingly approved this week by the City Council. If the drug-screening law is enacted, it would put New York in relatively uncharted territory. Several drug policy and employment experts said that they did not know of similar laws on the books, even in states that have legalized marijuana. Quest Diagnostics, one of the nation’s largest medical testing companies, released data on Thursday that said that marijuana use had risen among United States workers in 2018. An analysis of more than 10 million drug-test results showed that 2.3 percent of the American work force tested positive for marijuana use in 2018, up from 2 percent a year earlier.

More American workers are testing positive for marijuana, a new report finds, as lawmakers in New Jersey and Illinois push to join nearly a dozen more states where recreational use of the drug is now legal. The number of workers and job applicants who tested positive for marijuana climbed 10% last year to 2.3%, according to an analysis of 10 million urine, saliva and hair samples by Quest Diagnostics Inc., one the nation’s largest drug-testing laboratories. The Quest data, which is set to be released Thursday, found 4.4% of the analyzed samples contained traces of both legal and illegal controlled substances including pot, prescription painkillers and other drugs—the highest such rate since 2004.

The rate of U.S. general workforce drug positivity hit a 14-year high in 2018, according to a new drug testing analysis released April 11 by Quest Diagnostics. Positivity rates in the combined U.S. workforce increased nearly 5% in urine drug tests, from 4.2% in 2017 to 4.4% in 2018, climbing to the highest level since 2004 (4.5%). They now are more than 25% higher than the 30-year low of 3.5% recorded each year from 2010-12.