| Abstract: | In order to investigate the bacteria and fungi aerosol characteristic distribution in HVAC-system and its components at Shaanxi History Museum.Measurements were performed to probe the bacteria and fungi aerosol in HVAC systems,located at Xi'an city,China.The results showed that there was fungi growth inside the ventilation ducts,fungi contamination was worse than bacteria,and both of them were distributed into occu-pied space with the air supply ducts.The dominating genera of fungi was found to be Penicillium spp. and As-Pergillus spp.,which was respectively 46.1%and 20.7% in settling fungi, and the dominating genera of fungi in dust were Cladosporium spp.and Penicillium spp., which was 41.8%and 30.1%respectively.It suggests that available measures to improve and control the performance of HVAC-systems such as the maintenance,management and cleaning should be taken to prevent this pollution and to develop strategies to keep this pollution away. |
