addiction
ash
ashtray
background
bad
bag
black
butt
can
cigarette
city
clean
color
container
dirt
dirty
disposal
dump
ecology
environment
environmental
foul
full
garbage
industry
installation
junk
litter
metal
package
paper
people
pile
pollution
recycle
recycling
red
retro
rubbish
sad
straw
street
town
trash
treatment
urban
vintage
wall
waste
water