Train Derailment Clean-up continued

Scary morning as we looked out the back window and saw flames more than 20 feet high. ┬áThe flamable contents in derailed cars were being emptied using a “controlled burn”.

According to the London Free Press this morning, there were actually 2 derailed cars with environmentally sensitive chemicals resulting in a small leak of petro allylate, a substance used in making plastics.

I guess the liquid propane that had to be burned off before moving the derailed cars wasn’t considered a dangerous substance?