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Subject area Finds Positive Dose Tryout from Secondhand Marihuana Smoke Unlikely

A new study finds it is unlikely that a person exposed to secondhand marijuana smoke will test sensationalism for marijuana themselves. While it is possible that extreme marijuana smoke exposure could produce a positivistic urine tryout, this occurrence is likely to be rare and limited to the hours immediately after exposure, reported to researchers from Johns Gerard Manley Hopkins University.

Six experienced marijuana users smoked marijuana with different concentrations of THC, the drug's psychoactive element, in a sealed chamber. Six not-smokers were seated next to the smokers. In two sessions, the participants were in a way with No ventilation, while in the third school term they were in a aired room. The non-smokers' urine was tried 13 multiplication over the close 34 hours. Urine levels of THC surpassed typically detectable levels in only one player, four to six hours after photo. When the researchers used a more sensitive test, which is usually not used in work do drugs testing, they could find lower THC levels, but only for 24 hours.

Non-smokers in the ventilated elbow room did not come close to meeting the threshold for a overconfident drug test, Newsweek reports.

The findings are published in the Daybook of Logical Toxicology.