background
barrel
brick
canister
cargo
cask
chemical
chemistry
conservation
container
corrosion
danger
diesel
dirty
drum
ecology
environment
environmental
factory
fuel
gallon
garbage
gasoline
hazard
hazardous
horizontal
industrial
industrial zone
industry
isolated
liquid
metal
mud
oil
old
outdoors
outside
petrol
petroleum
pollution
rust
rusty
steel
storage
tank
toxic
transport
vat
view
waste