Workplace drug tests: Marijuana positivity rates spike.

PositionIn The News...

While positivity rates in workforce testing for most drugs remained flat or declined from 2019 to 2020, the positive rate for marijuana climbed at double-digit rates, up 16% for urine testing (3.1% in 2019 versus 3.6% in 2020), says Quest Diagnostics. Rates were even...

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