Employees of a lab were mixing chemicals Monday afternoon in Emeryville when things got too hot, Alameda County Fire Department officials said. Firefighters responded at 2:55 p.m. to a commercial laboratory located on the 5800 block of Hollis Street in Emeryville where a fire was contained to a fume hood, fire spokesperson Brian Centoni said. A hazardous materials team was also called. Centoni said no one was injured and no one had to shelter in place. A building was evacuated and sprinklers went off. The hazmat team was evaluating some runoff as of late Monday afternoon.