After the events on December 24, 2008, where passengers on Alaska Airlines flight 528 were exposed to deicing fluid, many have inquired asking if Alaska uses Ethylene Glycol (more toxic) or Propylene Glycol (less toxic) as a deicing fluid. The answer is that Alaska Airlines uses the more toxic solution, Ethylene Glycol.
I recently came across an article describing the physiological effects of exposure to ethylene glycol. I am concerned that the passengers on flight 528 were not told what they were breathing, were not told that it was dangerous and were not told which side effects to be alert to. This was no harmless substance, it was toxic.