Use of HF in refineries

An incident has been reported in a refinery in the US where a HF release reportedly occurred. The article mentions the following:
"A hydrofluoric acid leak from an oil refinery in Ohio last week sent a worker to the hospital and required the use of a “water cannon” to disperse the poisonous gas, underscoring the potentially perilous nature of a chemical used at 50 refineries across the country.
HF is used as a catalyst to make high-octane gasoline, despite the existence of a safer alternative and warnings about the chemical’s extreme toxicity and its ability to travel long distances in a cloud. The Center for Public Integrity and ABC News reported last week that at least 16 million Americans live in the potential path of an HF release".
Read the full article in this link
Read the MSDS of HF in this link.