室内voc标准值是多少 [聊城大学校园空气细菌的时空分布及空气质量评价] .docx
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1、室内voc标准值是多少 聊城大学校园空气细菌的时空分布及空气质量评价 目的 了解高校校内空气细菌的时空分布及空气质量,为学校环境卫生学评价供应依据。方法 采纳平皿沉降法对聊城高校校内空气细菌进行检测。结果 校内1.5 m高度空气细菌平均含量为2.35103 cfu/m3,空气质量为细菌较清洁水平。不同地点中以校内网吧空气细菌的含量较高,达轻度污染水平;校医院、校阅览室空气清洁;地面空气细菌的污染程度较高,达轻度污染水平,人群呼吸带以上空气清洁度提高;不同时段的空气细菌含量差异无统计学意义。结论 校内空气细菌的时空分布与人员活动亲密相关,人员密集地及呼吸带轻度污染。校内空气总体处于较清洁水平。
2、细菌;空气污染,室内;评价探讨;学生保健服务 R 161.5 R 122.1 G 478.2 A 10009817(2007)05043302 Spacetime Distribution of Air Bacteria and Evaluation of Air Quality on Campus of Liaocheng University/SI Dongxia*,SI Zhenshu, XU Bingrong.*Agriculture College of Liaocheng University, Liaocheng(252000), Shandong Province, China
3、 Objective To study the spacetime distribution of airborne microorganism and air quality, and to provide evidence for school environmental hygiene. Methods By using the method of gravity plate, airborne microorganism were investigated on Liaocheng Univesity Campus. Results The content of air bacteri
4、a in campus was 2.35103 cfu/m3 at 1.5m height, the quality of air was at comparative clear level. In different places of the university campus, the content of air bacteria was high in internet bars and the air quality was lowgrade pollution. The air of university hospital and reading room were clear
5、. The air bacteria pollution was high near the ground, and reached lowgrade pollution, the air cleanness increased over the respiratory zone. The content of air bacteria was not significant in different time. Conclusion Spacetime distribution of airborne microorganism is closely correlated with peop
6、les activity.Air is slightly polluted at respiratory zone or densely populated area.Generally,the air is clean on the campus. Bacteria;Air pollution,indoor;Evaluation studies;Student heatlh services 空气微生物是大气污染物之一。自1861年巴斯德首次获得空气微生物、1881年柯赫用沉降法(平皿暴露)测定其含量至今已近150 a的时间1-2。随着科技的进步及人类相识水平的提高,空气微生物的探讨获得了长
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