Analysis of portable impactor performance for enumeration of viable bioaerosols.

Analysis of portable impactor performance for enumeration of viable bioaerosols. Research Abstract Details 

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Analysis of portable impactor performance for enumeration of viable bioaerosols. Abstract Text:

Maosheng Yao,Gediminas Mainelis,

Portable impactors are increasingly being used to estimate concentration of bioaerosols in residential and occupational environments; however, little data are available about their performance. This study investigated the overall performances of the SMA MicroPortable, BioCulture, Microflow, Microbiological Air Sampler (MAS-100), Millipore Air Tester, SAS Super 180, and RCS High Flow portable microbial samplers when collecting bacteria and fungi both indoors and outdoors. The performance of these samplers was compared with that of the BioStage impactor. The Button Aerosol Sampler equipped with gelatin filter was also included in the study. Results showed that the sampling environment can have a statistically significant effect on sampler performance, most likely due to the differences in airborne microorganism composition and/or their size distribution. Data analysis using analysis of variance showed that the relative performance of all samplers (except the RCS High Flow and MAS-100) was statistically different (lower) compared with the BioStage. The MAS-100 also had statistically higher performance compared with other portable samplers except the RCS High Flow. The Millipore Air Tester and the SMA had the lowest performances. The relative performance of the impactors was described using a multiple linear regression model (R(2) = 0.83); the effects of the samplers' cutoff sizes and jet-to-plate distances as predictor variables were statistically significant. The data presented in this study will help field professionals in selecting bioaerosol samplers. The developed empirical formula describing the overall performance of bioaerosol impactors can assist in sampler design.

Analysis of portable impactor performance for enumeration of viable bioaerosols. Publishing Authors By Initials

M Yao,G Mainelis,

For similar natural sciences: chemistry: chemistry, physical: particle size research abstracts see: natural sciences: chemistry: chemistry, physical: particle size research

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Analysis of portable impactor performance for enumeration of viable bioaerosols. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Journal of occupational and environmental hygiene

VOLUME: 4

Page Numbers: 514-24

Journal Abbreviation:

ISSN: 1545-9624

DAY: 3

MONTH: Jul

YEAR: 2007

Analysis of portable impactor performance for enumeration of viable bioaerosols. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 101189458

Analysis of portable impactor performance for enumeration of viable bioaerosols. Keywords Mesh Terms:

KEYWORDS: Particle Size

MESH TERMS: methods

Chemical & Substance for Abstract: Analysis of portable impactor performance for enumeration of viable bioaerosols. Information

Substance Name: Aerosols

Registry Number: 0

Grant and Affiliation Information for Analysis of portable impactor performance for enumeration of viable bioaerosols.

AFFILIATION: Department of Environmental Sciences, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08901-8551, USA.

Country: United States

AGENCY: United States NIOSH

GRANT: KO1-OH 008029

ACRONYM: OH

MEDLINETA: J Occup Environ Hyg

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