Where It Comes From
Produced and used in industrial facilities as a monomer/intermediate for acrylic resins and other products; it can be released during manufacture, storage, transport, or spills [1][3].
How You Are Exposed
Mostly at work by inhaling vapors or through skin; less commonly from air near facilities or accidental releases; skin absorption can be rapid [1][2][3].
Why It Matters
Short, high exposures can cause headache, dizziness, nausea, rapid breathing, confusion, collapse, and can be life-threatening; it also irritates eyes/skin and is highly flammable [1][2][3].
Who Is at Risk
Workers in acrylic/resin production, transporters, and emergency responders; people living near production or storage sites [1][3].
How to Lower Your Exposure
At work, use closed systems, local exhaust, and appropriate gloves/respirators; wash skin promptly after contact and remove contaminated clothing. In the community, follow spill and air advisories and avoid areas downwind of releases [1][2][3].
References
- [1]WHO/ILO International Chemical Safety Card (ICSC): Methacrylonitrile (IPCS).
- [2]CDC/NIOSH Pocket Guide to Chemical Hazards: Methacrylonitrile.
- [3]U.S. EPA, Acute Exposure Guideline Levels (AEGLs) for Methacrylonitrile.