About 20 people were injured, three critically, after Freon gas leaked from a refrigeration system at the Palmer House Hilton Hotel this afternoon, according to the Chicago Fire Department.
The restaurant of the hotel, 17 E. Monroe St., was evacuated shortly after 2 p.m. after there were reports of people affected by Freon, a gas used to help operate the cooling system, fire department spokesman Larry Langford said.
Seventeen of the 20 injured were in good condition and the other three were in critical condition after suffering from nausea and irritation, Langford said. Forty-five people refused treatment from paramedics at the scene. The restaurant employees and customers were taken to Stroger Hospital, Northwestern Memorial Hospital and Rush University Medical Center.
Maintenance work was underway on the refrigeration system, causing it to leak Freon fumes, Langford said. Authorities initially had suspected an air-conditioning system, which also uses Freon. A full evacuation of the hotel was not necessary because the fumes dissipated quickly and did not travel far, Langford said.
<snip>
http://www.chicagotribune.com/news/custom/newsroom/chi-060317palmerhouseleak,1,912148.story?coll=chi-news-hed