A survey of wind speeds in indoor workplaces
A survey of wind speeds in indoor workplaces
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DOI：
10.1093/annhyg/42.5.303
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发表时间：
1998-07-01
影响因子：
--
通讯作者：
Maynard, AD
中科院分区：
文献类型：
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作者：
Baldwin, PEJ;Maynard, AD
可吸入气溶胶采样公约的适用性取决于它是典型采样环境的有效模型。目前的惯例是基于在1至4 m.s（-1）的外部风速下进行的测量。然而，这些测量结果显示了一定程度的风速依赖性，目前还不确定该公约在描述这些风速限制之外的人类吸气效率方面的有效性。考虑到许多室内工作场所的风速可能明显低于此范围，在覆盖广泛工作场所的55个工作区域进行了测量，测量集中在“背景”风速上，其中特定空气运动源的影响最小化，汇总风速测量结果显示出高度偏斜的分布，算术平均值约为0.3 m.s（-1）。约85%的个体测量值低于该平均值，风速分布参数与工业类型、房间大小或通风类型之间没有明显的相关性，静态风速计与安装在工人身上的装置之间的比较数量有限。结果发现，工作人员经历的模态风速通常比使用静态风速计测量的风速高0.05 m.s（-1）。这些测量结果与以前公布的类似工作场所和房屋的数据吻合得很好。皇家版权（C）1998年由爱思唯尔科学有限公司代表英国职业卫生学会出版。
The applicability of the inhalable convention for sampling aerosols relies on its being a valid model for typical sampling environments. The current convention is based on measurements carried out in external wind speeds between 1 and 4 m.s(-1). However these measurements show a degree of wind speed dependence, and it is uncertain at present how valid the convention is for describing human aspiration efficiency outside these wind speed limits. Following concerns that wind speeds in many indoor workplaces may be significantly below; this range, measurements have been made in 55 work areas covering a wide range of workplaces, Measurements have concentrated on 'background' wind speeds where the influence of specific air movement sources is minimised, The pooled wind speed measurements show a highly skewed distribution with an arithmetic mean of approximately 0.3 m.s(-1). Approximately 85% of all individual measurements were below this mean value, No obvious correlation was found between wind speed distribution parameters and industry type, room size or ventilation type, A limited number of comparisons were made between static anemometers and devices mounted on workers. It was found that modal wind speeds experience by workers were typically 0.05 m.s(-1) higher than those measured using a static anemometer. These measurements agreed well with previously published data for similar workplaces as well as houses. Crown copyright (C) 1998 Published by Elsevier Science Ltd on behalf of British Occupational Hygiene Society.