Employees were evacuated from a gas station in Bloomfield after a carbon dioxide leak on Wednesday morning. Members of the Connecticut Department of Energy and Environmental Protection and Blue Hills Fire Department were called to Citgo on Blue Hills Avenue around 8:45 a.m. A CO2 tank malfunctioned and leaked into the basement, according to Blue Hills Fire Chief Robert Farmer. There were no reported injuries. Farmer said employees were evacuated as a precaution after some said they experienced dizziness, but they were expected to be OK. "It depreciates the oxygen levels so that’s one reason why they were complaining of light-headedness and dizziness," Farmer said. "My initial crews that went in did find some oxygen levels that were lower than normal.”