Conclusions
The above experiment, within the limits of the ob-
served parameters, has underlined that e-smoking
does not produce detectable amounts of toxic and car-
cinogenic substances in the air of an enclosed space.
Further studies are needed to better understand all
the involved aspects. However this preliminary as-
sessment indicates that passive vaping impact, when
compared to the traditional cigarette smoking, is
so low that it is just detectable, and it does not
have the toxic and carcinogenic characteristics of
cigarette smoking. The absence of combustion and
the lack of sidestream smoking, with its known toxic
effects [2, 6] are probably the main reasons for the
differences observed in air pollution characteristics
between e-cigarettes and tobacco smoking.
On the base of the obtained results and on ARPA
data about urban pollution, we can conclude by
saying that could be more unhealty to breath air
in big cities compared to staying in the same room
with someone who is vaping.