A preliminary study of airborne fungi in a museum indoor environment of southern Taiwan

• Main Authors: Ming-fu Chuang, 莊明福
• Other Authors: Pau-Ju Lee
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/39506490823391041199

碩士 === 國立臺南大學 === 自然科學教育學系碩士班 === 93 === The purpose of this study was to survey the composition of airborne fungi, and its relationship between the environmental condition; including indoor’s microclimate, gallery, inside display window, museum objects and story levels in a museum of southern Taiwan. Viable fungal colonies were isolated using a Brukard Portable air Sampler for MEA, CMA and modified DG-18 media in four season months of 2004. The results showed that total 3271 colonies, represented 35 taxa, were isolated and identified from three media, the total number of colony forming units per cubic meter (cfu m-3) in indoor and in outdoor air were 516-818 cfu m-3 vs. 1800-3767 cfu m-3, composed 0.204-0.295 ratio. Therefore, this results showed the air conditioner can effectively isolate and prevent from outdoor airborne fungi into the museum. Total numbers of species and viable fungal colonies growing on MEA media were higher than on CMA and modified DG-18 media. The most dominant indoor airborne fungi were identified as Cladosporium, Yeasts, Penicillium, Aspergillus and Acremonium, comprised over 94.56% of total viable fungal colonies. The seasonal variation showed higher fungal concentrations in January and July than in October. The quantitative analysis of Penicillium and Yeasts showed significantly positive correlation（r＝0.583, 0.408, p＜0.01 respectively） with high-relative humidity, while Cladosporium and Aspergillus showed the negative correlation （r＝-0.131, -0.132, p＜0.05 respectively）. The incidence of Aremonium, Cladosporium and Penicillium in galleries was significantly higher than inside of display window, the reverse was the case for Aspergillus. The incidence of Aremonium was higher at oil painting area, while Aspergillus at leather and feather area. No obvious trends on concentrations of airborne fungi related to story levels were detected from the results. To obtain more comprehensive information on airborne fungi in the museum, sampling would require to be repeated several times and during different seasons, museum objects and building environments