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Characteristics of fine particulate matter and volatile organic compounds in subway station offices in China

机译：中国地铁站办事处细颗粒物质和挥发性有机化合物的特征

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摘要

The air quality in subway station offices can greatly affect the health and comfort of metro staff. We characterized the air pollution in the offices of six subway stations by measuring the concentrations and composition of airborne fine particulate matter and volatile organic compounds in both summer and winter. We compared the findings by season, ventilation system type, platform screen door design, and station age. Concentrations of metals in airborne particulate matter were higher in metro station offices than in reference ambient air, with iron, manganese, and copper greatly exceeding their concentrations in ambient air. The concentrations of total volatile organic compounds exceeded national standard limits and ranged from 1027.63 to 1801.83 mu g/m(3). Operating the mechanical ventilation system in full fresh-air mode rather than primary air return mode reduced the concentrations of volatile organic compounds. These findings provide an assessment of pollutant characteristics in metro station offices and may be useful in formulating prevention and mitigation strategies for indoor air quality management.
机译：地铁站办公室的空气质量极大地影响了地铁工作人员的健康和舒适。通过在夏季和冬季测量空气中细颗粒物质和挥发性有机化合物的浓度和组成，在六个地铁站的办公室中的空气污染。我们将季节，通风系统类型，平台屏幕门设计和站年龄进行比较。在地铁站办公室的空气中颗粒物质中金属浓度高于参考环境空气，铁，锰和铜大大超过它们在环境空气中的浓度。总挥发性有机化合物的浓度超过了国家标准限制，范围为1027.63至1801.83μg/ m（3）。以全淡空气模式而不是初级空气回波模式操作机械通风系统，降低了挥发性有机化合物的浓度。这些调查结果对地铁站办事处的污染物特征进行了评估，可用于制定用于室内空气质量管理的预防和缓解策略。

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  • 来源
    《Building and Environment》 |2021年第1期|107502.1-107502.8|共8页
  • 作者

    Ji Wenjing; Liu Zhenzhe; Liu Chenghao; Wang Chunwang; Li Xiaofeng;

  • 作者单位

    Univ Sci & Technol Beijing Sch Civil & Resource Engn Beijing 100083 Peoples R China;

    Tsinghua Univ Sch Architecture Dept Bldg Sci Beijing 100084 Peoples R China;

    Univ Sci & Technol Beijing Sch Civil & Resource Engn Beijing 100083 Peoples R China;

    Tsinghua Univ Sch Architecture Dept Bldg Sci Beijing 100084 Peoples R China;

    Tsinghua Univ Sch Architecture Dept Bldg Sci Beijing 100084 Peoples R China|Tsinghua Univ Beijing Key Lab Indoor Air Qual Evaluat & Control Beijing 100084 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Indoor air quality; Constituent; Metal-enriched particle; I/O ratio; Ventilation;

    机译：室内空气质量;成分;富含金属颗粒;I / O比;通风;

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