bag
bin
bus
campaign
clean
cleaning
concept
conservation
cup
design
dirty
dump
environment
garbage
graphic
hand
icon
idea
illustration
isolated
line
litter
logo
odor
organic
outline
people
person
pictogram
pile
plastic
pollution
problem
recycle
refuse
reuse
rubbish
smell
style
sustainable
sweep
symbol
thin
toxic
trash
truck
waste
water
wet