Illinois

...when I was a kid I used to bicycle ocassionally past the ExxonMobil refinery on Crenshaw Blvd in Torrance in the LA basin.

That plant at one time handled ton quantities of HF.

One of the fun things about Crenshaw Blvd is its proximity to the Inglewood Newport fault. There was, I think, a Bophal in there that thankfully never happened.

The fossil fuel industry is dangerous in normal operations but the potential for accidents make it much much worse although such accidents when they happen go right down the memory hole.