典型高校公共场所室内空气微生物分布特征

发布时间：2018-06-13 18:03

本文选题：室内空气 + 体育场馆　；参考：《环境科学学报》2016年08期

【摘要】：公共场所室内空气中有害微生物引起的健康风险越来越受到人们的关注.本研究针对典型高校公共场所室内空气,考察了不同类型场所空气中总异养菌的浓度水平及其与颗粒物浓度、活动人数、温度、湿度等影响因素的相关性.结果表明,某高校体育场馆空气中总异养菌浓度显著高于教室、宿舍等场所,为13~154 CFU·m-3.针对多个体育场馆的分析结果表明,活动人数对室内空气中微生物浓度影响最大,与总异养菌浓度呈线性正相关,回归分析得到的R2达0.92.室内空气中PM_(2.5)、PM10及温度、湿度均与空气微生物浓度无显著相关关系.针对空气中抗生素抗性菌的研究表明,室内空气中具有氨苄青霉素、四环素和青霉素抗性的总异养菌比例为20%~50%,其中,可吸入异养菌中氨苄青霉素抗性菌比例可达40%.
[Abstract]:People pay more and more attention to the health risk caused by harmful microorganisms in indoor air in public places. In this study, the concentration level of total heterotrophic bacteria in the air of typical university public places was investigated and its correlation with the concentration of particulate matter, number of activities, temperature, humidity and other influencing factors was investigated. The results showed that the concentration of total heterotrophic bacteria in the air of a university gymnasium was significantly higher than that in classrooms and dormitories, which was 13154CFU m-3. The results of analysis on several stadiums showed that the number of activities had the greatest influence on the concentration of microorganisms in indoor air, and there was a linear positive correlation with the concentration of total heterotrophic bacteria, and the R2 obtained by regression analysis was 0.92. There was no significant correlation between PM2. 5, PM10, temperature, humidity and microorganism concentration in indoor air. The study on antibiotic resistant bacteria in the air showed that the proportion of total heterotrophic bacteria with ampicillin, tetracycline and penicillin resistance in indoor air was 200.The ratio of ampicillin resistant bacteria in respirable heterotrophic bacteria could reach 40.
【作者单位】：清华大学环境学院环境模拟与污染控制国家重点联合实验室;国家环境保护环境微生物利用与安全控制重点实验室;
【基金】：国家自然科学基金(No.51378286)~~
【分类号】：R126.4

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