Higher and higher – Marijuana used by more than 1 in 5, national survey finds
If it seems to be getting more difficult to find employees who can pass a drug test that includes marijuana, the latest statistics on use may explain the challenge.
Marijuana was used by 23 percent of adults in 2022, according the most recent National Survey on Drug Use and Health from the Substance Abuse and Mental Health Services Administration (SAMHSA).
This is an increase of more than three percentage points from 2021, when 19.8 percent of those over age 18 reported using marijuana sometime in the past year.
Recent use also going up
Current use of marijuana is up as well, according to the survey.
It found that 15.5 percent of people age 18 or older reported using marijuana in the past month in 2022. In 2021, 13.6 percent reported past-month use.
Where is pot use most prevalent?
The SAMHSA survey also looked at marijuana use by geographic region and found that use of the drug is most common in the West, which includes Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming, Alaska, California, Hawaii, Oregon, and Washington.
Here’s how the West compares to other regions of the country for past-month marijuana use among those 18 and over:
- West: 19.7 percent
- Northeast: 17 percent
- Midwest: 16.1 percent
- South: 12.8 percent
Legalization continuing to grow
The increase in marijuana use nationwide coincides with a growing number of states legalizing use of the drug for medical and recreational purposes.
The drug is now legal for recreational use in 24 states and the District of Columbia, and medical marijuana is legal in 38 states and the District of Columbia.
Marijuana and the workplace
What employers can and can’t do about marijuana use among employees is directed by state law. In all states, employers can:
- Prohibit marijuana use in the workplace
- Prohibit marijuana use on work time
- Prohibit possession of marijuana on company property and in company vehicles
- Take action when an employee shows signs of being impaired by marijuana
In states without legal marijuana, employers can test for marijuana and take action when a test is positive. Some states where marijuana is legal, notably California and New York, do not permit employers to take a negative action based on a positive test for marijuana, however.
Testing for marijuana is controversial because a positive test proves that an individual has used the drug, but does not prove that they are impaired by it. Whether or not an employee could be impaired at work after using marijuana when off-duty will depend on several factors, including:
- When the drug was used
- The level of THC (the chemical that causes psychoactive effects) in the marijuana
- How the drug was ingested
- How often the drug is used
A study from the National Institutes of Health reports that the window of impairment from marijuana use is generally three to 10 hours.
Marijuana products with higher THC levels will result in more impairment. When the drug is consumed as an edible, impairment will last longer than when it is smoked. Those who use marijuana more often may build up tolerance and have lower levels of impairment.
Taking action
While some states do not allow an employer to take action based on a positive marijuana test, signs of impairment certainly merit immediate action. Employers can take an employee aside to talk about what is going on if they observe signs that could indicate impairment including:
- Unsafe actions
- Uncoordinated movements
- Unsteady walking
- Incoherent or slurred speech
- Inability to focus or concentrate
After discussing the situation with the employee, and ruling out a medical reason for the behavior, an employer may decide to take action based on the employee’s unsafe or unprofessional behavior.
If allowed under state law, a drug test could be conducted to determine whether illegal drug use is the reason for the behavior. In states that do not allow testing for marijuana, the law may still allow testing for other drugs.
Educating employees
Another key to a safe, productive workplace in an era of increasing marijuana use is an updated policy that is shared with employees.
Employees should understand what is prohibited at work, and supervisors should know what to do if an employee does not stick to the policy. To make sure everyone in the workplace is on the same page when it comes to marijuana:
- Educate employees on your policy and the effects of marijuana use
- Train supervisors to recognize the signs of impairment
- Make sure supervisors understand how to respond when signs of impairment are observed
- Provide resources and support for employees who have drug problems
Key to remember: Employers can take steps to make sure the increasing prevalence of marijuana use does not make their workplace less safe.