Photo: #Philadelphia fire department at Frankford Ave Health Center for Haz-Mat Spill

Philadelphia fire department and Haz-Mat Unit respond to Frankford Avenue Health Center along Frankford Avenue and Seller St on Tuesday morning January 17, 2012. The Haz-Mat Unit was called in for an alleged mercury spill. Alejandro A. Alvarez / Philadelphia Daily News / © 2012 Philadelphia Media Network