Performance characteristics of the button personal inhalable aerosol sampler

被引:77
|
作者
Aizenberg, V
Grinshpun, SA [1 ]
Willeke, K
Smith, J
Baron, PA
机构
[1] Univ Cincinnati, Dept Environm Hlth, Aerosol Res & Exposure Assessment Lab, Cincinnati, OH 45267 USA
[2] NIOSH, Ctr Dis Control & Prevent, US Dept HHS, Cincinnati, OH 45226 USA
来源
关键词
inhalable aerosols; personal sampling; wind tunnel evaluation;
D O I
10.1080/15298660008984550
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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.
引用
收藏
页码:398 / 404
页数:7
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