explosion
accident
air
blue
building
chemical
chernobyl
chernobyl disaster
chernobyl reactor
chimney
coal
concrete
disaster
disaster recovery
electricity
energy
environment
factory
fuel
gas
industrial
industry
nuclear
nuclear power plant
number 4
oil
pipe
plant
pollution
power
power station
pripyat
pripyat ukraine
radiation
radioactive
reactor
reactor number 4
refinery
sarcophagus
sky
smoke
station
technology
tower
ukraine