carbon monoxide leak
Investigators blamed the leak on a faulty furnace at the apartment building in the 8000 block of Keating Avenue.
Carbon monoxide from a boiler leak Tuesday night forced as many as 70 people from their apartments in the Albany Park neighborhood on the North Side.
At least six people were taken to the hospital early Monday from a home on the northern edge of the Beverly neighborhood.
Fire officials responded to the Elgin O’Hare Commerce Center Friday afternoon, when many workers there became sick from carbon monoxide.