Considering there are dead animals and one person lying on the ground outside, anyone who is underestimating the danger is an idiot.
HazMat teams are finally moving into the area. Thus far they have only been treating people who came to the staging area.
The concern is that as night falls, the air gets heavier and the chlorine will be pushed down to the ground and blanket the area.
Tonight is going to be rough for you people. If you have a place to go, I would leave. The weather conditions could not be worse. What chlorine does to you is it forms Hydrochloric acid in your lungs, your lungs fill up with body fluids and you basically drown in your own fluids. It is like instant pneumonia. This is why your eyes are burning. It also attacks some petroleum based products like nylon and Dacron. Pour some chlorox on a nylon rope and see what it does to it.