Nanoparticle collection efficiency of capillary pore membrane filters

W.D Cyrs; D.A Boysen; G Casuccio; T Lersch; T.M Peters

doi:10.1016/j.jaerosci.2010.04.007

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Nanoparticle collection efficiency of capillary pore membrane filters

Journal article

Open access

Peer reviewed

Nanoparticle collection efficiency of capillary pore membrane filters

W.D Cyrs, D.A Boysen, G Casuccio, T Lersch and T.M Peters

Journal of aerosol science, Vol.41(7), pp.655-664

2010

DOI: 10.1016/j.jaerosci.2010.04.007

PMCID: PMC10425775

PMID: 37583893

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https://pmc.ncbi.nlm.nih.gov/articles/PMC10425775/pdf/nihms-1923289.pdfView

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Abstract

The surface and overall collection efficiencies of capillary pore membrane filters were measured for sub-micrometer particles. Collection efficiencies were derived from the surface loadings of particles on filters measured by scanning electron microscopy and from airborne particle concentrations measured with a scanning mobility particle sizer. Tests used filters with nominal pore diameters of 0.4 and 0.8 μm and face velocities of 3.7 and 18.4 cm/s. Surface collection efficiencies were below 100% for particles smaller than 316 nm and below 55% for particles smaller than 100 nm. Overall collection efficiencies reached as low as 45% for 70 nm particles. For nanoparticles, collection efficiencies overall were substantially higher than those to the filter surface, indicating that deposition occurs to a large extent inside the filter pores. These results underscore the need to account for surface collection efficiency when deriving airborne concentrations from microscopic analysis of nanoparticles on capillary pore membrane filters.

Nanoparticle

Filter

Efficiency

Air sampling

Details

Title: Subtitle: Nanoparticle collection efficiency of capillary pore membrane filters
Creators: W.D Cyrs - The University of Iowa, 100 Oakdale Campus, 121 IREH, Iowa City, IA 52242, USA
D.A Boysen - The University of Iowa, 100 Oakdale Campus, 121 IREH, Iowa City, IA 52242, USA
G Casuccio - R.J.Lee Corporation, 350 Hochberg Road, Monroeville, PA 15146, USA
T Lersch - R.J.Lee Corporation, 350 Hochberg Road, Monroeville, PA 15146, USA
T.M Peters - The University of Iowa, 100 Oakdale Campus, 121 IREH, Iowa City, IA 52242, USA
Resource Type: Journal article
Publication Details: Journal of aerosol science, Vol.41(7), pp.655-664
DOI: 10.1016/j.jaerosci.2010.04.007
PMID: 37583893
PMCID: PMC10425775
NLM abbreviation: J Aerosol Sci
ISSN: 0021-8502
eISSN: 1879-1964
Publisher: Elsevier Ltd
Language: English
Date published: 2010
Academic Unit: Roy J. Carver Department of Biomedical Engineering; Occupational and Environmental Health
Record Identifier: 9983997470702771

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