I am really sorry but I don't know
un smoking
I am still smoking --> Je fume encore
quit smoking = arrêter de fumer
"Pas mal" is how you say "not bad" in French.
health = santé
bad - mauvais
Any amount of smoking is harmful to your health. Ten cigarettes a day is most likely not as harmful as smoking, say, a pack a day. But it's still FAR worse than not smoking at all. Furthermore, since there have been few studies when it comes to light smoking, it is difficult to say how the dangers of smoking, say, 10 cigarettes a day compares to smoking a pack a day.
smoking weed is bad in general, but yes, i wold say that smoking weed during a pregnancy should be highly avoided as it probably harms the baby.
Some people say smoking should be banned because it is a serious threat to human health.
Mauvais.
I am not bad is "je ne suis pas mauvais / mauvaise" in French.
The way to say "bad" in french is mauvais (masculine) or mauvaise (feminine)