Methyl Methacrylate
Health Effects
EPA's Integrated Risk Information System found no evidence that methyl methacrylate is carcinogenic. EPA's assessment concludes that "the low potential for cancer from MMA exposure indicated in genotoxicity, laboratory animal and epidemiology studies suggests that MMA does not represent a carcinogenic hazard to humans", noting that two-year NTP inhalation studies showed no evidence of carcinogenicity in rats or mice and that epidemiology studies show no clear excess of cancer. The oral reference dose is 1.4 mg/kg/day, derived from a rat drinking-water study with a NOAEL of 136 mg/kg/day and no identified critical effect. By inhalation, the critical effect is degeneration and atrophy of the olfactory epithelium in male rats.
Source: EPA IRIS — Integrated Risk Information System (IRIS) (retrieved 2026-07-27)
Common Sources
- Discharge from plastics and resin manufacturing — methyl methacrylate is the monomer used to make acrylic (Plexiglas-type) plastics
- Dental and orthopaedic acrylics, adhesives and coatings
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Contaminant Type
Methyl Methacrylate is classified as a VOCs contaminant.
Related VOCs Contaminants
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