科研之友
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摘要
Airborne fungi, which may adversely affect human health through allergy, infection, and toxicity, are being proposed as a cause of adverse health effects. In this study, a systematic survey on culturable airborne fungi was conducted for one year in four areas of the university campus in Hangzhou, southeast of China: living area (LA), dining area (DA), teaching area (TA), and office area (OA). Results showed that the mean concentration of culturable fungal was about 1104 CFU/m(3). Pencillium was the most common fungal group, and contributed to more than 36% of the total fungal concentration, followed by Cladosporium, Alternaria, and Asperigillus isolates. Fungal concentration in DA was highest (1271 CFU/m(3)), while the concentration in OA was lowest (791 CFU/m(3)). The seasonal variation pattern of fungal concentration in a year was significant in LA, DA and TA, where the concentrations were higher in spring and summer, and lower in autumn and winter (**P<0.01). However, there were no significant differences in fungal concentration in OA. With regarding to the size distribution of airborne fungi, there were no significance among different areas and seasons, all appeared as normal logarithm distribution. Moreover, airborne fungi was mostly collected in stage 3 (3.0 to 6.0 mu m), stage 4 (2.0 to 3.5 mu m) and stage 5 (1.0 to 2.0 mu m), and totally composing 83.55% of the population in LA, 83.96% in DA, 85.14% in TA, and 79.39% in OA. It suggested that a more efficient monitoring network and forewarning system of airborne microorganisms in the public areas should be gradually constructed in China.
- 出版日期2012-2-16
- 单位浙江工商大学; 杭州市疾病预防控制中心
