Seasonal variations of airborne bacteria in the Mogao Grottoes, Dunhuang, China
Seasonal variations of airborne bacteria in the Mogao Grottoes, Dunhuang, China
复制标题
敦煌莫高窟空气细菌的季节变化
DOI：
10.1016/j.ibiod.2010.03.004
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发表时间：
2010-07
影响因子：
4.8
通讯作者：
Ma, Xu
中科院分区：
文献类型：
--
作者：
Feng, Huyuan;An, Lizhe;Wang, Wanfu;Ma, Yantian;Wu, Fasi;Ma, Xiaojun;Ma, Xu
气载细菌是生物气溶胶的重要组成部分，在文化遗产保护中发挥着重要作用。空气中高浓度的细菌会导致生物空气污染和潜在的疾病。本研究对敦煌莫高窟4个开放式、半封闭式、封闭式和入口处的空气中可培养细菌进行了系统调查。从2008年9月至2009年8月，使用六阶段可培养FA-1采样器每月收集空气中的细菌。可培养细菌的数量范围为1.01 × 102菌落形成单位（CFU/m3）至3.8 × 103 CFU/m3。封闭洞、开放洞、半封闭洞和入口处的平均值分别为1.30 × 103± 145 CFU/m3、1.1 × 103± 279 CFU/m3、4.4 × 102± 67 CFU/m3和4.4 × 102± 77 CFU/m3。空气细菌粒径主要分布在采样的第4阶段，粒径在2.1-3.3 μm之间。空气中细菌浓度与环境温度、相对湿度、游客人数等因素相关。结果表明，游客人数对莫高窟环境细菌的浓度和组成有明显的影响。
Airborne bacteria are important biological components of bioaerosol and play an important role in the conservation of cultural heritage. High concentration of bacteria in the atmosphere can result in biological air pollution and potentially diseases. In this study, a systematical survey of culturable airborne bacteria was carried out in Mogao Grottoes of Dunhuang, China at four sites (one cave is open to visitors, another is semi-closed, the third one is closed to visitors, and the fourth site is the entrance gate). Airborne bacteria were collected using a six-stage culturable FA-1 sampler monthly from September 2008 to August 2009. The populations of culturable bacteria were in a range from 1.01 × 102colony forming units (CFU/m3) to 3.8 × 103CFU/m3. The mean was 1.30 × 103± 145 CFU/m3, 1.1 × 103± 279 CFU/m3, 4.4 × 102± 67 CFU/m3and 4.4 × 102± 77 CFU/m3in the Closed Cave, Open Cave, Semi-closed Cave and the Entrance, respectively. The particle size of airborne bacteria were mainly distributed in stage 4 of sampling with diameters approximately 2.1–3.3 μm. The correlation was found between airborne bacterial concentrations and environmental temperature, relative humidity, as well as tourists number. The results suggested that the number of visitors has an obvious influence on both the concentrations and the compositions of ambient bacteria in Mogao Grottoes.
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影响因子：
5
作者：
Yi-Hua Wu;Chang-Chuan Chan;C. Rao;Chung-te Lee;H. Hsu;Y. Chiu;H. Chao
通讯作者：
Yi-Hua Wu;Chang-Chuan Chan;C. Rao;Chung-te Lee;H. Hsu;Y. Chiu;H. Chao
影响因子：
0.8
作者：
Y. H. Yoon;P. Brimblecombe
通讯作者：
Y. H. Yoon;P. Brimblecombe
影响因子：
4.4
作者：
D. Reasoner;E. Geldreich
通讯作者：
D. Reasoner;E. Geldreich
影响因子：
9.8
作者：
Fang, ZG;Ouyang, ZY;Lin, XQ
通讯作者：
Lin, XQ
影响因子：
3.6
作者：
Fang, Zhiguo;Ouyang, Zhiyun;Hu, Lifeng
通讯作者：
Hu, Lifeng