Novel Collection and Toxicological Analysis Techniques for IC Engine Exhaust Particulate Matter

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The project staff partnered with Costas Sioutas from the University of Southern California to apply the VACES (Versatile Aerosol Concentration Enhancement System) to a diesel engine test facility at West Virginia University Department of Mechanical Engineering and later the NIOSH Lake Lynn Mine facility. The VACES system was able to allow diesel exhaust particulate matter (DPM) to grow to sufficient particle size to be efficiently collected with the SKC Biosampler impinger device, directly into a suspension of simulated pulmonary surfactant. At the WVU-MAE facility, the concentration of the aerosol was too high to allow efficient use of the VACES concentration ... continued below

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Keane, Michael; Shi, Xiao-Chun & Ong, Tong-man September 30, 2008.

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Description

The project staff partnered with Costas Sioutas from the University of Southern California to apply the VACES (Versatile Aerosol Concentration Enhancement System) to a diesel engine test facility at West Virginia University Department of Mechanical Engineering and later the NIOSH Lake Lynn Mine facility. The VACES system was able to allow diesel exhaust particulate matter (DPM) to grow to sufficient particle size to be efficiently collected with the SKC Biosampler impinger device, directly into a suspension of simulated pulmonary surfactant. At the WVU-MAE facility, the concentration of the aerosol was too high to allow efficient use of the VACES concentration enhancement, although aerosol collection was successful. Collection at the LLL was excellent with the diluted exhaust stream. In excess of 50 samples were collected at the LLL facility, along with matching filter samples, at multiple engine speed and load conditions. Replicate samples were combined and concentration increased using a centrifugal concentrator. Bioassays were negative for all tested samples, but this is believed to be due to insufficient concentration in the final assay suspensions.

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  • Report No.: None
  • Grant Number: AI26-06NT42821
  • DOI: 10.2172/958563 | External Link
  • Office of Scientific & Technical Information Report Number: 958563
  • Archival Resource Key: ark:/67531/metadc930070

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  • September 30, 2008

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 6, 2016, 2:14 p.m.

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Keane, Michael; Shi, Xiao-Chun & Ong, Tong-man. Novel Collection and Toxicological Analysis Techniques for IC Engine Exhaust Particulate Matter, report, September 30, 2008; United States. (digital.library.unt.edu/ark:/67531/metadc930070/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.