NEWS

The Arkema plant in Crosby, Texas, has gone up in flames yet again.
A plume of black smoke came from the plant on Friday during a very intense fire. At least two of eight remaining tractor trailers containing organic peroxide have exploded, CBS News correspondent Kris Van Cleave reports.
When the refrigeration units quit during Harvey's extensive flooding, the Arkema chemical plant said it would explode at any moment.
Fire crews said they have to let the blaze burn itself out because it's too dangerous to go in. The smoke emitted is an irritant that can create breathing issues. At least 18 first responders were taken to the hospital with a variety of issues, Van Cleave reports.
As the smoke billowed out, police put on protective gear including gas masks. 
On Friday, some residents living near the Arkema chemical plant tried to get around a mandatory evacuation order to get back home but were met by road blocks.

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Organic peroxides ... very unstable at higher temperatures. The fumes are respiratory irritants.

Not sure why this company does not have backup electrical generators for their refrigeration systems.