nicotine
addiction
ash
ashtray
asthma
background
cancer
cigarette
cigarette butt
concept
danger
deadly
death
dingy
dirty
disease
drugs
environment
filth
filthy
full astray
grimy
gross
grubby
health
illness
impure
issues
life
mangy
medical
mess
messy
mucky
object
obscene
risky
sickness
slimy
smoking
tobacco
unhealthy