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Emissions of volatile organic compounds from interior materials of vehicles

机译：车辆内饰材料中挥发性有机化合物的排放

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摘要

People spend a substantial amount of daily time in vehicle environments being exposed to variety of airborne chemicals. High concentrations of volatile organic compounds (VOCs) inside vehicle cabins have been of increasing concern owing to various health risks. Yet, there is a limited knowledge and data about VOC emissions from interior vehicular materials. In a controlled small-scale ventilated chamber, we quantified dynamic VOC emission characteristics for four commonly-used vehicular interior materials (leather coat of seats (LCS), dash-board (DB), pillar (PI) and ceiling (CE)) exposed to the two interior air temperatures (25 and 60 degrees C). The emission strengths of VOCs increased with temperature elevation by 3-36 times, but not linearly for every group of compounds. The level of individual VOC compounds emitted was a strong function of time, indicating the importance of a continuous sampling approach. Correlation analysis of individual VOCs revealed different emission mechanisms among the major compounds. The source apportionment results indicated that the LCS materials were associated with emissions of aromatics, carbonyls and other VOCs at 25 degrees C, while special attentions should be paid to the DB and the PI for their predominant contributions to extremely elevated level of aliphatic compounds at 60 degrees C. The results of this study are potentially useful for database of VOC emissions from vehicular materials, development of improved standard testing methods and for improved modeling of VOC emissions .
机译：人们每天在车辆环境中花费大量时间，使其暴露于各种空气传播的化学物质中。由于各种健康风险，车厢内高浓度的挥发性有机化合物（VOC）引起了越来越多的关注。然而，关于室内车辆材料的VOC排放的知识和数据有限。在一个受控的小型通风室内，我们对暴露的四种常用车辆内饰材料（皮革座椅座（LCS），仪表板（DB），支柱（PI）和天花板（CE））的动态VOC排放特征进行了量化。到两个内部空气温度（25和60摄氏度）。随着温度的升高，VOC的发射强度增加了3-36倍，但对于每组化合物而言都不是线性的。每种挥发性有机化合物的排放量是时间的重要函数，这表明连续采样方法的重要性。各个VOC的相关分析表明，主要化合物之间的排放机理不同。源解析结果表明，LCS材料与25摄氏度时的芳族化合物，羰基化合物和其他VOC的排放有关，而应特别注意DB和PI，因为它们在60℃时会极大地升高脂族化合物的含量这项研究的结果可能对车辆材料VOC排放的数据库，开发改进的标准测试方法以及改进VOC排放的建模有用。

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  • 来源
    《Building and Environment》 |2020年第3期|106599.1-106599.11|共11页
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    Ecole Polytech Fed Lausanne Human Oriented Built Environm Lab Sch Architecture Civil & Environm Engn CH-1015 Lausanne Switzerland|Tsinghua Univ Dept Bldg Sci CN-100084 Beijing Peoples R China;

    Tsinghua Univ Dept Bldg Sci CN-100084 Beijing Peoples R China;

    Ecole Polytech Fed Lausanne Human Oriented Built Environm Lab Sch Architecture Civil & Environm Engn CH-1015 Lausanne Switzerland;

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  • 正文语种 eng
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  • 关键词

    Indoor air quality (IAQ); Source apportionment; Vehicular environment; Material emission; Air temperature;

    机译：室内空气质量（IAQ）;来源分配;车辆环境;物质排放;气温;

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