re: OSU playoff victory & second hand smoke

quote:

---

Current research has shown that passive exposure may result in low level positives (up to about 30 ng/ml) if the exposure conditions are severe enough. That means heavy smoke in a confined, non-ventilated space for an extended period of time. The data also suggests that THC is not likely to be detectable for more than about 24 hours after such exposure. It is unlikely that most people would tolerate the extreme conditions necessary to produce a positive result from passive exposure. The federal guidelines for work place testing have reduced the cutoff level for positive results from 100 ng/ml to 50 ng/ml, because it can be safely assumed that levels exceeding 50 ng/ml represent use of THC rather than exposure to side stream smoke.

---