目的:监测西安地铁2号线车站内站厅与站台积尘量、细菌总数、真菌总数、PM10、β-溶血性链球菌、新风量、嗜肺军团菌状况.方法:用普通琼脂培养皿和血培养皿分别采集站厅、站台真菌总数、β-溶血性链球菌；用无纺布采集风管内积尘量；利用智能粉尘检测仪采集PM10;利用热球式风速仪采集风口风速求平均风速计算新风量、利用500 mL无菌瓶采集冷却水和冷凝水检测嗜肺军团菌.结果:除冷却水中检出嗜肺军团菌外,其他各项指标符合国家相关标准,总体上西安地铁站中央空调卫生学项目及新风量状况较好.结论:按照卫生学预评价意见,健全卫生管理制度,完善必要的卫生设施,使运营过程中产生的各种影响乘客健康的因素得到有效控制、减轻或消除,从公共场所卫生学角度评价该项目是可行的.%Objective: To Monitor the status of quantity of dust, total bacterial counts (TBC), total fungi counts, PM10(Paticular Matter), β-hemolytic streptococcus, volume of fresh air and legionella pneumophila in the station hall and platform of Metro Line 2 at Xi'an. Methods: Plain agar petri dishes and blood culture dishes were used to collect the total fungi counts and p-hemolytic streptococcus from station hall and platform. The duct amounts were collected by non-woven fabric in air duct system. PM10 was detected by intelligent dust detector. Fresh air volume was calculated based on the average wind speed detected by ball-type thermal anemometer. Cooling water and condensed water was collected by 500 mL sterile bottle so as to determine β-hemolytic streptococcus. Results: Except detection of β-hemolytic streptococcus in cooling water, other items are in accordance with national standards. In general, the items of central air conditioning and fresh air volume of Xi'an subways are well. Conclusion: According to the opinions of hygienics pre-evaluation, we should improve health management system, and consummate health facilities, so it can control, minimize or eliminate the factors with impact on health of passengers. This project is feasible from the public point of hygiene evaluation.
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