0 the unwanted breathing in of other people's cigarette smoke, especially by people who do not smoke: --
Reducing smoking in the general population will reduce exposure to second-hand or passive smoking.
In the last category, three times as many people are estimated to die from passive smoking than all other work-related deaths.
There is little doubt that passive smoking increases the risk of respiratory tract infection in children.
The fact is that the effects of passive smoking have been reviewed by numerous scientific and medical committees worldwide.
Perhaps the most important factor has been the increasing social unacceptability of smoking, with increased awareness of the health risks of smoking and passive smoking.
That is the extent of so-called passive smoking.
In gist, passive smoking is breathing in other people's tobacco smoke.
It is not true that passive smoking is not harmful, because good scientific evidence shows that it is.
