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A member asked:

Can thc be in your system in your around marijuana smokers without actually smoking it?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

See below.: It would need to be a very high concentration in a closed room for a prolonged period. In other words, casual contact with secondary smoke will not lead to measurable levels of thc.

Answered 10/9/2016

5.4k views

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