西安市地铁2号线运营前地铁站室内空气卫生质量
Indoor Air Quality of Metro Line 2 Stations before Commercial Operation in Xi'an
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摘要:
目的 了解西安市地铁2 号线运营前17 座车站室内空气卫生质量状况。 方法 根据《公共场所卫生监测技术规范》(GB/T 17220-1998),对17 个车站站台、站厅的温度、相对湿度、风速、一氧化碳(CO)、二氧化碳(CO2)、甲醛、可吸入颗粒物(PM10)、空气细菌总数、噪声、照度进行监测。 结果 16 号地铁站温度均值以及9、10 号地铁站PM10 均值超标,其余14 个地铁站各项卫生指标均合格。17 个车站站厅温度、CO2、甲醛值均高于站台;相对湿度、噪声、照度水平均低于站台,差异有统计学意义(P<0.05)。 结论 西安市地铁2 号线运营前室内空气卫生质量状况良好,建议地铁开通后加强卫生监测工作。 Abstract:Objective To analyze the indoor air quality of 17 stations of metro line 2 in Xi'an. Methods With reference to the Technical Rules of Health Monitoring for Public Places (GB/T 17220-1998), indicators including temperature, relative humidity, wind velocity, carbon monoxide (CO), carbon dioxide (CO2), formaldehyde, respirable particular matter (PM10), air bacteria, noise, and illumination were detected in the 17 station halls and platforms. Results Except the temperature of Station 16 and the PM10 in Stations 9 & 10 were higher than the standards, the indicators of the other 14 stations were all within the acceptable limits. The temperature, the concentrations of CO2 and formaldehyde were higher in the station halls, and the relative humidity, noise levels, and illumination levels were higher in the platforms (P<0.05). Conclusion The indoor hygienic quality of Xi'an metro line 2 is at a high level. Routine hygienic monitoring should be performed after the commercial operation.
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