Castot A, Efthymiou M L
Sem Hop. 1983 Jul 7;59(27-28):2028-30.
The proximity of smokers exposes non-smokers to the inhalation of tobacco smoke. The existence of this absorption has been established by assays of blood nicotine concentrations or urinary thiocyanate concentrations, in volunteers: proximity with an individual who smokers approximately ten cigarettes is equivalent to smoking one cigarette. Consequences of this passive smoking are not negligible. Two studies, one Japanese and one Greek, have shown that the risk of lung cancer in wives of smokers is twice that in non-smoking women married to non-smokers, even though various American studies seem more reassuring. Another risk of cancer exists in the offspring of mothers who smoked during their pregnancy, with a rate of 14.9 x 10(5) if the mother smoked, versus 11. 4 x 10(5) if she didn't. Experimental rates of cancer in hamster fetuses confirm this risk.
吸烟者呼出的烟雾会被不吸烟者吸入。通过对志愿者血液中尼古丁浓度或尿液中硫氰酸盐浓度的检测，证实了这种烟雾吸入的存在：与一个每天吸大约10支烟的人待在一起，相当于自己吸了一支烟。这种被动吸烟的后果不容忽视。两项研究，一项是日本的，一项是希腊的，表明吸烟者的妻子患肺癌的风险是非吸烟者丈夫的妻子的两倍，尽管美国的多项研究结果似乎更令人安心。母亲在怀孕期间吸烟，其子女患癌症的风险也会增加，母亲吸烟时子女患癌率为14.9×10⁵，母亲不吸烟时为11.4×10⁵。对仓鼠胎儿进行的癌症实验发生率证实了这种风险。
