What Chemical Is Leaking in Garden Grove, CA?

[Beringia]

18. The word sounded familiar and I remember why, they use it to make joint cement for knee replacements

So I had a shorthand for that, probably mma and it would spell it out

Poly(methyl methacrylate) (PMMA) is widely used in orthopedic applications, including bone cement in total joint replacement surgery, bone fillers, and bone substitutes due to its affordability, biocompatibility, and processability. However, the bone regeneration efficiency of PMMA is limited because of its lack of bioactivity, poor osseointegration, and non-degradability. The use of bone cement also has disadvantages such as methyl methacrylate (MMA) release and high exothermic temperature during the polymerization of PMMA, which can cause thermal necrosis.

https://pubmed.ncbi.nlm.nih.gov/38337256/