environmental
aerosol
background
barrel
bottle
brown
can
chemical
compressed
container
contamination
cylinder
danger
dirty
dump
empty
energy
environment
fuel
gallon
garbage
gas
gasoline
grunge
industrial
industry
metal
nature
object
ocean
oil
old
ozone
pebble
pollution
protection
recycle
recycling
rust
rusty
sea
spray
steel
stone
tank
tin
tool
toxic
trash
white