air
building
carbon
chemical
chimney
complex
cooling
dark
emission
energy
environment
equipment
exhaust
factory
fuel
gas
heavy
industrial
industry
japan
kanagawa
kawasaki
landscape
light
machinery
manufacturing
ocean
oil
petrochemical
petroleum
pipe
piping
plant
power
refinery
refining
region
sea
seaside
sky
smelting
smoke
sophistication
stack
tank
thermal
tourism
zone