The air quality in the Reserve Bank’s Wellington building is being tested after a trace of asbestos was found on Wednesday. The building was closed and staff evacuated after the asbestos was found on level 1 during a routine inspection. It is being remediated. Three levels were found to be clear. Inspection and testing continues, while essential operations are being carried out at premises in Auckland. “Because of the age of the building, asbestos must be presumed to be present,” the bank’s head of communications, Mike Hannah, said. A plan was being developed for returning everyone to the premises once the safety of staff and tenants was assured. The 14-storey building on The Terrace also houses the Parliamentary Counsel office, the Parliamentary Commissioner for the Environment, State Services Commission and the Defence Force.