Accident: Shell Polymers Monaca Chemical Release
Location: Location: Monaca , PA
Accident Occurred On: 06/04/2025 | Final Report Released On:
Accident Type: Release
Investigation Status:
On June 4, 2025, at approximately 2:19 p.m. local time, the Shell Polymers Monaca facility experienced an accidental release of butadiene and benzene from the ethane cracking unit. The incident resulted in a fire.