A collaborative european study of personal inhalable aerosol sampler performance

Kenny, L.C.; Aitken, Robert J.; Chalmers, Cheyne; Fabriès, J.F.; Gonzalez-Fernandez, E.; Kromhout, Hans; Lidén, Göran; Mark, D.; Riediger, G.; Prodi, V.

doi:10.1016/s0003-4878(96)00034-8

Cited by 192 publications

(214 citation statements)

References 10 publications

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“…Testing of personal aerosol samplers for inhalable dust has involved manikin-mounted samplers in a wind tunnel or in the work environment to simulate samplers worn on a worker (Botham et al 1991;Chung et al 1992;Chung et al 1987;Kenny et al 1997;Mark and Vincent 1987). To understand the mechanisms affecting personal sampler performance, it is desirable to make measurements of both the air ow around the samplers mounted on the manikin and the sampling ef ciency of the samplers.…”

Section: Introductionmentioning

confidence: 99%

Development of a Large Particle Aerosol Distribution System for Testing Manikin-Mounted Samplers

Smith¹,

Bartley²,

Watkins³

1999

Aerosol Science and Technology

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ABSTRACT. Personal samplers used to determine the inhalable fraction of workplace dust are tested while mounted on a manikin, which simulates a worker. To understand the mechanisms affecting the performance of such samplers, researchers must measure the air ow around the body where the samplers are mounted. Therefore, wind tunnel facilities to determine both air ow conditions around samplers and sampling ef ciency are needed.A wind tunnel system was developed that was large enough to accommodate the top half of a life-sized manikin and employed a laser Doppler velocimeter for velocity measurements around the manikin. For generating particles up to 70 m m, an aerosol generation system, using a two-dimensional scanning system to cover an extended area, was developed and tested. The generation system had carriages with linear bearings mounted on rod assemblies for scanning in the horizontal and vertical directions. Screw drives, powered by stepper motors under computer control, moved the carriages in a preprogrammed pattern. The generation system was characterized for its ability to generate uniform concentrations of aerosols over an extended area at wind speeds of 0.5 and 2 m/s and particle sizes of 7 and 70 m m. Uniformity of concentration over the area studied, in the absence of the manikin, was 10% relative standard deviation (RSD) or better, except for 7 m m particles at a wind speed of 0.5 m/s where some nonuniformity was observed. The uniformity under these conditions was improved by rearranging the distances between components in the wind tunnel.

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Section: Introductionmentioning

confidence: 99%

Development of a Large Particle Aerosol Distribution System for Testing Manikin-Mounted Samplers

Smith¹,

Bartley²,

Watkins³

1999

Aerosol Science and Technology

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“…The IOM sampler/37-mm CFC sampler ratio measured from various wood industries show ratios ranging from around 2 to 4 (Martin and Zalk, 1998;Perrault et al, 1996). Similar comparison studies also indicate that the actual ratios depend on the size of the particles that are generated, with higher ratios measured for activities that generate coarse particles versus activities that generate fine particles (de Vocht et al, 2006;Kenny et al, 1997;Kerr et al, 2002;and Tatum et al, 2001). Various wood dust studies have shown the CFC to under-sample particles in the inhalable range from 0 -100 m (Buchan et al, 1986;Lee et al, 2011;Martin and Zalk, 1998;Tatum et al, 2001).…”

Section: Background and Significancementioning

confidence: 79%

“…Various wood dust studies have shown the CFC to under-sample particles in the inhalable range from 0 -100 m (Buchan et al, 1986;Lee et al, 2011;Martin and Zalk, 1998;Tatum et al, 2001). Some field comparisons for the IOM and 37 mm samplers (open and closed face) have shown the IOM sampler to collect around 2-3 times more mass than the 37-mm samplers, whereas laboratory comparisons have shown a factor of 1.2 -1.4 (Kenny et al, 1997). …”

Section: Background and Significancementioning

confidence: 99%

A Comparison of "Total Dust" and Inhalable Personal Sampling for Beryllium Exposure

Carter

2012

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“…Given this, the velocity was too unstable at high initial free-stream velocities to compute concentration accurately. Notably, Kenny et al (1997) also observed difficulty in maintaining uniform concentrations when increasing the free-stream velocity from 1 m/s to 4 m/s. Because we required a maximum free-stream velocity of 1.0 m/s, it was not deemed necessary to revise the AGS for higher velocities at this time.…”

Section: Uniform Releasementioning

confidence: 98%

Development of a Versatile Aerosol Generation System for Use in a Large Wind Tunnel

Heist¹,

Richmond-Bryant

Eisner³

et al. 2003

Aerosol Science and Technology

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A novel aerosol generation system has been constructed for use in a large wind tunnel for two distinct research projects. One project requires a uniform aerosol concentration over the wind tunnel cross section, while the other project demands a stratified aerosol concentration distribution. The system consists of an array of venturi nozzles, which entrains particulate matter from a moving conveyor belt and disperses it into the tunnel under the force provided by a compressed air source. For the stratified release configuration, only the bottom row of nozzles was used and a confinement sleeve was installed to prevent mixing with clean air; the mixing fans were omitted from this configuration. The uniform release arrangement was tested by gravimetrically measuring particle concentration over the cross section of the tunnel for tunnel speeds of 0.1 and 1.0 m/s; uniformity was achieved within a coefficient of variation of 6.4%. The stratified distribution results show a high concentration near the floor, which diminishes with increased height. Particle size distribution was also determined on filter samples using scanning electron microscopy analysis for the uniform release experiments. No appreciable difference in mass median diameter or geometric standard deviation could be discerned for the various sampling points.

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A collaborative european study of personal inhalable aerosol sampler performance

Cited by 192 publications

References 10 publications

Development of a Large Particle Aerosol Distribution System for Testing Manikin-Mounted Samplers

Development of a Large Particle Aerosol Distribution System for Testing Manikin-Mounted Samplers

A Comparison of "Total Dust" and Inhalable Personal Sampling for Beryllium Exposure

Development of a Versatile Aerosol Generation System for Use in a Large Wind Tunnel

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