What is the chemical substance that causes the emergency in Orange County?
Methyl methacrylate is a highly toxic substance that may pose health risks; 50,000 Garden Grove residents have been evacuated
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The city of Garden Grove, in Orange County, is in a state of emergency this Sunday due to the risk of explosion in a storage tank of a toxic chemical substance.
The 32,000-gallon tank, at the GKN Aerospace facility, stores methyl methacrylate, or MMA, a substance that is highly toxic and can pose significant health and safety risks.
MMA is a product used in the production of break-resistant acrylic glass, paints, adhesives, resins and plastics.

