贵州医科大学学报

2009, (06) 652-654

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贵阳市在校学生主要活动场所室内环境细菌密度调查
An Investigation on Bacterial Density of Indoor Environments for Student Activities in Guiyang City

于敏;朱树珍;田效松;邓兴艳;殷宏;
YU Min1,ZHU Shuzhen1,TIAN Xiaosong2,DENG Xingyan1,YIN Hong1(1.Department of Clinical Laboratory Science,Guiyang Medical College,Guiyang 550004,Guizhou,China;2.Guiyang Professional Nursing College,Guiyang 550003,Guizhou,China)

摘要(Abstract):

目的:了解在校学生主要活动场所室内环境细菌密度情况。方法:用自然沉降法监测室内空气细菌密度,涂抹法监测室内物体表面细菌密度。结果:网络中心空气细菌密度最大,平均菌落数为15.2cfu/皿,教室的平均菌落数最少,为6.1cfu/皿;室内物体表面细菌密度,以食堂玻璃平均菌落数最多,为4.0cfu/cm2,墙面次之,为3.5cfu/cm2;键盘按键平均菌落数最多为28.8cfu/cm2,鼠标8.2cfu/cm2;教室桌面细菌密度使用前未超出标准,使用后超出标准。结论:学生主要活动场所室内环境空气中细菌密度达到我国公共场所卫生标准,而物体表面细菌密度多数超过国家相关标准应引起重视。
Objective:To understand bacterial densities in indoor environment for school student activities.Methods:Natural sedimentation method was adopted to monitor the indoor air bacteria density(ABD),and smear method for monitoring bacterial density on surfaces(BDS)of indoor objects.Results:ABD and BDS were measured with average colony number,and expressed as cfu/plate and cfu/cm2 respectively.The ABDs in computer center and classroom were 15.2 cfu/plate,and 6.1 cfu/plate,with the former one as the highest density.The BDSs on dining room glass,dining room wall,computer keyboard,and mouse were 4.0 cfu/cm2,3.5 cfu/cm2,28.8 cfu/cm2,and 8.2 cfu/cm2 respectively.The BDSs on class tables all exceeded the permitted standards except those on new tables.Conclusion:The indoor ABD in Guiyang schools can meet the national standard,while most of the BDS exceed national standards,which might relate to people's activities,and calls for more attention.

关键词(KeyWords): 环境监测;空气污染,室内;细菌
environmental monitoring;air pollution,indoor;bacteria

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作者(Author): 于敏;朱树珍;田效松;邓兴艳;殷宏;
YU Min1,ZHU Shuzhen1,TIAN Xiaosong2,DENG Xingyan1,YIN Hong1(1.Department of Clinical Laboratory Science,Guiyang Medical College,Guiyang 550004,Guizhou,China;2.Guiyang Professional Nursing College,Guiyang 550003,Guizhou,China)

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