The Chemical Safety Board has completed its investigation into a June 2025 explosion and fire in Pennsylvania.

Fifteen workers evacuated the Shell Polymers Monaca facility in Pennsylvania after flammable gas ignited inside an ethane-cracking furnace on June 4, 2025, causing an explosion and fire. The U.S.

Add Yahoo as a preferred source to see more of our stories on Google. Federal investigators released a final report Wednesday into a major explosion and fire at the Shell Polymers Monaca facility in ...