某市轨道交通空气微生物浓度及其影响因素

发布时间：2018-07-14 08:23

【摘要】：目的:调查某市地铁站空气微生物浓度及分布状况,并对其影响因素进行分析。方法:依据《公共场所卫生检验方法》,随机抽取该市的5个地铁站,对其空气微生物分布状况、温度、湿度、人流量进行调查,并对空气微生物种类进行鉴定分析。结果:站台、站厅、车厢细菌总数合格率均为100%,细菌总数分布表现为车厢、站厅站台地面。站台、站厅、车厢真菌总数合格率分别为72%、60%、50%,真菌总数分布表现为地铁内部(站台、站厅、车厢)菌落总数都大于地面。细菌总数、真菌总数与人流量的相关系数分别为0.719、0.344(P0.05)。细菌中优势菌为葡萄球菌属,真菌中优势菌为曲霉菌属和青霉菌属。结论:该市地铁内部细菌污染程度较轻,但真菌污染程度较严重,且空气微生物浓度与人流量密切相关。
[Abstract]:Objective: to investigate the concentration and distribution of microorganism in air in a subway station and analyze its influencing factors. Methods: according to the method of hygienic inspection in public places, 5 subway stations in the city were randomly selected to investigate the distribution, temperature, humidity and flow rate of microbes in the air, and to identify and analyze the species of microbes in the air. Results: the qualified rate of bacteria in platform, hall and compartment was 100. The qualified rate of the total number of fungi in the platform, the station hall, and the carriage was 722 / 605 / 50, respectively. The total number of fungi distributed in the subway (platform, station, carriage) was larger than that on the ground. The correlation coefficients between the total number of bacteria, the total number of fungi and the population flow were 0.719 ~ 0.344 (P0.05). The dominant bacteria in bacteria are Staphylococcus, and the dominant bacteria in fungi are Aspergillus and Penicillium. Conclusion: the degree of bacterial contamination in subway is relatively light, but the degree of fungal contamination is serious, and the concentration of microorganism in air is closely related to the flow of people.
【作者单位】：郑州大学公共卫生学院流行病学教研室;
【基金】：2014年郑州大学自主创新项目14YD00616
【分类号】：R126.4

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