An activist on Twitter is sharing the words of a friend who works as a nuclear engineer. They were speaking about the devastating train derailment near Palestine, Ohio, and he had this dire words.

Twitter user @ashcapps says her friend told her, “if my family and I lived within a 30-mile radius of where that derailment happened, we would leave immediately and NEVER RETURN.”

The derailment caused dangerous chemicals to spill and has sparked fears of a chemical environmental disaster of epic proportions as the EPA continues to tell people it’s safe to remain in their homes.

But a towering plume of dark black smoke from a controlled burn of chemicals spilled by the train suggests that the effects are spreading further than the EPA is willing to admit.

Through air, water and over the land – people are afraid of what the train has left in its wake.