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Effect of microbial contamination of water-based metalworking fluids on the aerosolization of particles and microbial fragments.

Authors
Reponen-T; Wang-HX; Grinshpun-SA
Source
J ASTM Int 2005 Sep; 2(8):JAI12838
NIOSHTIC No.
20030695
Abstract
Aerosolization of particles from metalworking fluids (MWFs) was studied using a laboratory-scale set-up that simulates grinding operations. Semi-synthetic MWF and soluble oil were contaminated with Pseudomonas fluorescens, and the aerosolized particles were measured using a photometric mass monitor, optical particle counter, and a condensation nucleus counter. Microbial contamination of both semi-synthetic MWF and soluble oil increased the mass concentration as measured by the photometric aerosol mass monitor and the fine particle number concentration as measured by the condensation nucleus counter. These effects were seen most clearly for the fine size range of particles aerosolized from contaminated semi-synthetic MWF. Endotoxin results indicate that the increase in the fine particle concentration occurs at least partially due to the increase in the microbial cell wall components (fragments).
Keywords
Metalworking-fluids; Metalworking; Aerosols; Aerosol-particles; Bacterial-dusts; Bacteria; Laboratory-testing; Laboratory-work
CODEN
JAIOAD
Publication Date
20050901
Document Type
Journal Article
Funding Amount
378870
Funding Type
Grant
Fiscal Year
2005
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-003888
Issue of Publication
8
ISSN
1546-962X
Priority Area
Work Environment and Workforce: Mixed Exposures
Source Name
Journal of ASTM International
State
OH
Performing Organization
University of Cincinnati, Cincinnati, Ohio
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