The accident happened as a result of a defect in the fire
extinguishing system, which uses the gas to douse fires.
Thirteen
people were treated in hospital. Those affected included factory
workers, fire officers and local residents, who reported symptoms
of dizziness and nausea.
Police sealed off an area of around a kilometer around the factory,
ordering nearby residents to close their windows and to go to
higher floors, as carbon dioxide is heavier than air. The danger
remained even after the leak in the fire extinguishing system was
sealed.
"The problem is that there is no wind at all," a fire officer said.
"The carbon dioxide column is standing like a chimney up into the
air."
A helicopter was deployed in an attempt to disperse the gas, which
is not toxic at low concentrations.
(Deutsche Welle)
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