A grocery store was evacuated in Calgary’s East Village on Wednesday after carbon monoxide (CO) alarms went off. Around 150 people were evacuated from the Superstore located at 428 6 Ave S.E., according to the Calgary Fire Department. By the time crews arrived, everyone had already evacuated the store due to the alarms. CO at 50 parts per million was detected inside. The cause of the concentration of gas has not yet been confirmed. Exposure to carbon monoxide can cause flu-like symptoms, including headaches, nausea, dizziness, confusion, fatigue and loss of consciousness. The City of Calgary warns that working CO alarms provide the only warning for the dangerous gases.
