The plant in Harris County is owned by the French group Arkema.
The facility is flooded and some chemicals made there might react and start a fire that would belch black smoke, Arkema said in a statement.
It said nothing about how toxic the smoke might be or what kind of chemicals pose the risk.
Hydrogen peroxide is commonly used as a disinfectant.
Published : August 30, 2017
By : Agence France-Presse