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But secondhand smoke from vaping is also dangerous because it contains some of the same chemicals as regular cigarettes

These legal actions recall the anti-smoking fight waged in past decades, too

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And, they cause similar patterns of DNA damage to those seen in actual tumours

A defensive stock BAT increased its revenues in every region bar Asia-Pacific last year, with the developing world doing more than its share of the heavy lifting

The results were highly instructive: At the 100 ng/mL threshold zero non-smoker positives At the 75 ng/mL threshold zero non-smoker positives At the 50 ng/mL threshold (the DOT initial screening standard) only a single positive occurred, even in a sealed unventilated room with heavy smoke At a 20 ng/mL threshold multiple positives occurred Maximum THC metabolite concentrations for non-smokers by GC-MS ranged from 1.3 to 57.5 ng/mL under extreme unventilated conditions The key takeaway: for someone who does not smoke to fail a drug test due to secondhand smoke, they would need to be exposed to a high concentration of smoke in an unventilated space for a prolonged period