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Performance characteristics of the button personal inhalable aerosol sampler
V Aizenberg1, S A Grinshpun, K Willeke
1Department of Environmental Health, University of Cincinnati, OH 45267-0056, USA.
AIHAJ : a Journal for the Science of Occupational and Environmental Health and Safety
|July 8, 2000
Summary
The button inhalable aerosol sampler is suitable for personal sampling, showing consistent performance across different wind conditions and particle sizes. Its precision is comparable or better than other personal samplers.
Area of Science:
- Occupational Health
- Environmental Monitoring
- Aerosol Science
Background:
- A novel button inhalable aerosol sampler with a curved porous inlet was developed.
- Previous evaluations focused on its use as a stationary sampler in lab and field settings.
Purpose of the Study:
- To assess the suitability of the button sampler for personal inhalable aerosol sampling.
- To compare its performance against established personal samplers.
Main Methods:
- Testing the button sampler across various wind velocities (0.5, 2.0 m/sec), particle sizes (7, 29, 70 µm), and wind orientations (0°, 90°, 180°).
- Conducting experiments in a wind tunnel using a manikin.
- Comparing performance with IOM, GSP, and 37-mm closed-face filter cassette samplers.
Main Results:
- The button sampler's efficiency was largely independent of wind direction and less dependent on wind velocity compared to other samplers.
- Its direction-averaged sampling efficiency fit the inhalability curve better than the 37-mm cassette and comparably to the GSP sampler.
- The precision of the button sampler was generally equal to or better than the comparison samplers.
Conclusions:
- The button sampler demonstrates successful application as a personal inhalable aerosol sampler.
- Its robust performance across varying conditions makes it a viable option for personal exposure monitoring.