Smoke
If you have a fire and a helicopter hovering beside it, there's going to be a lot of dirt and smoke billowing around. Mostly smoke, on account of the fire. Now it's in your eyes and mouth. It gets in your lungs and you can't breathe. Why, helicopter, why!
えん
けむ, けむり
None
The smoke is too much and you realize this is the end (えん) for you. You're gonna die here!