is smoking one cigarette a month bad for you 3.36 Health effects of occasional (“social”) and cutting down 1 Cigarette a Day: What

"The message from this research is that women should quit smoking before becoming pregnant, or very early on, to reduce the chance of having a baby with a serious and lifelong physical defect." Co-author, Professor Charles Rodeck, UCL Institute for Women's Health, added: "The results of this research are of the greatest significance for the health of mothers and babies and for public health policy

And lets not forget, in smaller enclosed spaces, second-hand smoke can be hard on passengers

Waste Manag Res 25:363370

In fact they can survive these conditions for many months

Changes in the profile of non-daily smokers We used descriptive statistics to compare the sociodemographic, vaping, drinking, and smoking profiles of non-daily cigarette smokers over the study period