Record number of U.S. workers testing positive for cannabis, according to study

Cannabis use among the U.S. workforce reached a “historically elevated level” last year, according to newly released data from lab company Quest Diagnostics. For the more than 6 million workplace urine tests  the Secaucus, N.J.-based firm collected in 2022, 4.3% came up positive for weed — an increase from the 3.9% tallied the prior year, officialssaid.