environmental
burner
catalyst
catalytic
chemical
chimney
corporate
corporation
danger
distill
early
emissions
energy
engine
environment
factory
fuel
fume
gas
gasoline
global
heavy
ijmuiden
industrial
industry
landscape
manufacturing
metal
morning
oil
petrochemical
petroleum
pipes
plant
port
power
process
production
refinery
site
sky
smog
smoke
station
steam
structure
vapor
warming