Performance characteristics of the button personal inhalable aerosol sampler
Performance characteristics of the button personal inhalable aerosol sampler
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DOI：
10.1080/15298660008984550
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发表时间：
2000-05-01
期刊：
影响因子：
--
通讯作者：
Baron, PA
中科院分区：
文献类型：
--
作者：
Aizenberg, V;Grinshpun, SA;Baron, PA
本文介绍了一种新型的可吸入气溶胶固定采样器--弯孔式按钮采样器的研制和应用。本研究的重点是探讨其适用于个人可吸入气溶胶采样。按钮采样器进行了测试，在两个风速（0.5和2.0米/秒），三个颗粒大小（7，29，和70 μ m）和三个方向的风（0，90，和180度）。按钮采样器的性能特点进行了比较，与其他三个个人采样器IOM（职业医学研究所），GSP，和37毫米封闭面过滤盒。实验在风洞中进行，采样器安装在全尺寸人体模型上。的按钮采样器的特定方向的采样效率被认为是基本上独立的风向和风速的依赖程度要小得多的比其他三个采样器。当方向平均时，其采样效率曲线与可吸入性曲线的拟合被发现优于37-mm封闭面盒，与GSP采样器相当，但小于IOM采样器。纽扣式采样器的精度通常等于或优于比较采样器的精度。结论是按钮采样器可以成功地用作个人可吸入气溶胶采样器。
The button inhalable aerosol sampler with a curved porous inlet recently was developed and evaluated as a stationary sampler in the laboratory and in the field. The present study focused on investigating its suitability far personal inhalable aerosol sampling. The button sampler was tested at two wind velocities (0.5 and 2.0 m/sec), three particle sizes (7, 29, and 70 mu m) and three orientations to the wind (0, 90, and 180 degrees). The performance characteristics of the button sampler were compared with those of three other personal samplers-the IOM (Institute of Occupational Medicine), GSP, and 37-mm closed-face filter cassette. The experiments were conducted in a wind tunnel with the samplers mounted on a full-size manikin. The direction-specific sampling efficiency of the button sampler was found to be essentially independent of the wind direction and dependent on the wind velocity to a much smaller degree than that of the three other samplers. When direction-averaged, the fit of its sampling efficiency curve to the inhalability curve was found to be better than that of the 37-mm closed-face cassette, comparable with that of the GSP sampler, and less than that of the IOM sampler. The precision of the button sampler was found to be generally equal to or better than the precision of the comparison samplers. it was concluded that the button sampler can be successfully used as a personal inhalable aerosol sampler.