air
architecture
building
chemical
chemistry
chimney
complex
cooling
dark
diesel
dioxin
distillation
distillery
dusk
energy
environment
exterior
factory
fuel
gas
industrial
industry
japan
japanese
kawasaki
metal
night
oil
petrol
petroleum
pipe
plant
pollute
pollution
power
production
refine
refinery
sky
smoke
smokestack
stack
steam
steel
structure
technical
technology
tower
warming
working