In a message dated 10/12/05 1:53:52 PM, williams@FIRE.BIOL.WWU.EDU writes:

<< At any rate the entire parking area around the tank was covered with this
white fog of propane.  I have no sense of the dynamics of  what it takes to
cause an explosion but it was pretty freaky and i couldn't extricate myself from
it. >>

There's not too much to be concerned about out there in a free field.  If the
propane does ignite, you might get a forceful whoosh out of it and some
singed eyebrows.  It is whenever the stuff is restrained or contained that you have
to worry.

George