A reactive monomer used to make PMMA and other plastics; current news links it to a methacrylate leak and related lawsuits surrounding GKN Aerospace in Garden Grove.
More than 100 residents and local businesses are suing GKN Aerospace in California after a May chemical leak prompted mass evacuations. Officials say no contamination was detected, but plaintiffs accuse the company of negligent maintenance. FBI and EPA investigations have joined federal and state probes, while lawsuits seek damages and accountability.