Aerosolization of Fine Particles Increases Due to Microbial Contamination of Metalworking Fluids

Details

• Personal Author:
  Grinshpun SA ; Li W ; Martuzevicius D ; Reponen T ; Wang HX ; Willeke K
• Description:
  Aerosolization of microorganisms from metalworking fluids (MWFs) was studied using a laboratory-scale set-up simulating grinding operations. An optical particle counter (OPC), a condensation nucleus counter (CNC), an electrical low pressure impactor (ELPI), and a photometric aerosol mass monitor were used to measure the airborne particles and microorganisms aerosolized from MWFs. The tests were performed using a semi-synthetic MWF with and without bacterial contamination (Pseudomonas fluorescens). Microbial contamination of the MWF increased the number and mass concentrations of aerosolized particles by a factor of 2 (as measured by the OPC and the photometric aerosol mass monitor, respectively). At the same time, there was an up to 50-fold increase in the concentration of fine particles , as measured by the CNC. The data collected with the ELPI showed that the peak of the fine particle number concentration was at . The results indicate that MWF mist may contain high concentrations of microbial fragments, which may not be detected by traditional microbial analysis methods, such as cultivation or microscopic counting. [Description provided by NIOSH]
• Subjects:
  Aerosols Metals Microbiology Occupational Health Safety
• Keywords:
  Aerosol-particles Analytical-methods Analytical-processes Author Keywords: Grinding Simulator Metalworking-fluids Metalworking Fluid Microbial Contamination Microorganisms Particle Aerosolization
• ISSN:
  0021-8502
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-14
• Volume:
  36
• Issue:
  3
• NIOSHTIC Number:
  nn:20025978
• Citation:
  J Aerosol Sci 2005 Mar; 36(3):1-14
• Contact Point Address:
  Department of Environmental Health, University of Cincinnati, P.O. Box 670056, 3223 Eden Ave, Cincinnati, OH 45267
• Email:
  Tiina.Reponen@uc.edu
• Federal Fiscal Year:
  2005
• NORA Priority Area:
  Work Environment and Workforce: Mixed Exposures
• Performing Organization:
  University of Cincinnati
• Peer Reviewed:
  True
• Start Date:
  20010930
• Source Full Name:
  Journal of Aerosol Science
• End Date:
  20040929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:81a22304c53c1299800032b679f9fdf73cce5483bd297294e8c2097e44a256cc75a86d458cf47da7696afb73ec9cbd86c4182ec6486863329adabc392962de8b
• Download URL:
  https://stacks.cdc.gov/view/cdc/197129/cdc_197129_DS1.pdf
• File Type:
  [PDF - 254.30 KB ]