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[目的]观察上海市黄浦区地铁车站空气中PM_(2.5)现况,为改善地铁车站空气质量提供技术支持,为制定相关卫生标准提供科学依据。[方法]以上海市黄浦区辖内23个地铁站点作为检测对象,于2014—2015年采样并测定各站台、站厅区域PM_(2.5)浓度及其他相关数据,并进行统计学分析。[结果]黄浦区地铁站内以温度、相对湿度、风速为代表的微小气候指标均控制得较好,二氧化碳浓度在标准范围之内。PM_(2.5)分布特征为:单乘站与换乘站之间、每日不同时间段、工作日与休息日之间差异均无统计学意义,春冬季明显高于夏秋季,未安装屏蔽门站点的站台区域明显高于同站点的其他站台。[结论]建议地铁站点内应尽可能安装屏蔽门,加强对地铁站点内空调通风系统卫生管理。
[Objective] To observe the current PM_ (2.5) in the air of subway stations in Huangpu District of Shanghai and provide technical support for improving air quality in subway stations, and provide scientific basis for formulating relevant health standards. [Method] With 23 subway stations in Huangpu district of Shanghai as test objects, the concentrations of PM 2.5 and other related data were sampled and determined from 2014 to 2015 and analyzed statistically. [Result] The micro-climate indicators such as temperature, relative humidity and wind speed in Huangpu District subway station were well controlled and the concentration of carbon dioxide was within the standard range. The distribution characteristics of PM_ (2.5) were as follows: there was no significant difference between working day and rest day in single-station and interchange station, different daily time, and spring-summer in summer and autumn. There was no screen door The site area of the site is significantly higher than other sites on the same site. [Conclusion] It is suggested that screen doors should be installed in the subway stations as much as possible to enhance the hygiene management of air conditioning and ventilation systems in subway stations.