barrel
canister
chemical
container
danger
diesel
dirty
drum
dump
ecology
energy
environment
environmental
factory
fuel
gallon
garbage
gas
gasoline
grunge
hazard
hazardous
industrial
industry
keep
liquid
manufacturing
material
metal
oil
pallet
petroleum
poison
pollution
power
recycling
risk
safety
sending
stacked
steel
storage
tank
toxic
transportation
urban
warehouse
warning
waste