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首页> 外文期刊>Building and Environment >The effect of particle resuspension during walking activity to PM_(10) mass and number concentrations in an indoor microenvironment
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The effect of particle resuspension during walking activity to PM_(10) mass and number concentrations in an indoor microenvironment

机译：步行活动过程中颗粒重悬对室内微环境中PM_（10）质量和数量浓度的影响

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摘要

Mass and number concentration of particulate matter (PM_(10)) was measured during walking experiments inside a laboratory. In total 20 walking experiments were conducted in a period of 3 months. Particle number concentration was measured in the size range of 0.02-1 μm, while, mass concentration was measured in the range 0.1-10 μm. The PM_(10) mass increased during the activity, by average 84%, whereas, the walking activity had no impact on particle number concentration. Human induced resuspension rates were examined under different dust loadings. The different dust loadings used (25,15,5,1 g/m~2) in order to evaluate the impact of surface loading on the indoor PM_(10) mass concentration and on the resuspension rate. Walking style was the same in all experiments. Moreover, the experiments involved two different walking patterns inside the laboratory (rectangular and line). The impact of different speed was also examined. The average resuspension rate was calculated to be equal to 10~(-2)-10~(-3) hr~(-1). No impact on resuspension rate was observed for different walking patterns or walking speed. On the other hand, the measured mass concentration inside the room was increased when using higher dust loading on the floor, although the estimated resuspension rate found independent on the initially deposited surface dust loading.
机译：在实验室内部步行实验期间测量了颗粒物的质量和数量浓度（PM_（10））。在3个月内总共进行了20次步行实验。在0.02-1μm的尺寸范围内测量颗粒数浓度，而在0.1-10μm的范围内测量质量浓度。在活动期间，PM_（10）的质量平均增加了84％，而步行活动对粒子数浓度没有影响。在不同的粉尘负荷下检查了人为引起的重悬率。为了评估表面负荷对室内PM_（10）质量浓度和再悬浮率的影响，使用了不同的粉尘负荷（25、15、5、1 g / m〜2）。在所有实验中行走方式均相同。此外，实验涉及实验室内部的两种不同的行走方式（矩形和直线）。还研究了不同速度的影响。平均重悬率经计算等于10〜（-2）-10〜（-3）hr〜（-1）。对于不同的步行方式或步行速度，未观察到对重悬率的影响。另一方面，当在地板上使用较高的粉尘负荷时，室内的测量质量浓度会增加，尽管估计的重悬浮率与最初沉积的表面粉尘负荷无关。

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  • 来源
    《Building and Environment》 |2014年第12期|180-189|共10页
  • 作者

    Norbert Serfozo; Sofia Eirini Chatoutsidou; Mihalis Lazaridis;

  • 作者单位

    Department of Environmental Engineering, Technical University of Crete, Polytechneioupolis, 73100 Chania, Greece;

    Department of Environmental Engineering, Technical University of Crete, Polytechneioupolis, 73100 Chania, Greece,Norwegian Institute for Air Research (NILU), Instituttveien 18, 2007 Kjeller, Norway;

    Department of Environmental Engineering, Technical University of Crete, Polytechneioupolis, 73100 Chania, Greece;

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

    Indoor PM; Indoor particle emissions; Resuspension rate; Surface loading;

    机译：室内PM室内颗粒物排放;重悬率;表面负荷;

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