An iconic building in Boston is dealing with a potential health problem.The Boston Symphony Orchestra received a complaint in mid-July about possible asbestos exposure due to damaged ducts in the attic of Symphony Hall.The BSO is waiting for results on whether there's an asbestos problem in the 118-year-old building. A report is due in the next few days. In a statement the BSO says, “In the event repair work might need to be done, it would be completed in the next few weeks, before the fall season of performances begin in September."As a precaution the Pops will practice elsewhere for their upcoming performances.