Evaluation of a Non-Dispersive Infrared Spectrometer for Quantifying Organic and Elemental Carbon in Diesel Particulate Matter

Details

• Personal Author:
  Griffiths PR ; Miller AL ; Parks DA ; Zhao Y
• Description:
  Diesel particulate matter (DPM) is a common and well-known health hazard in the mining environment. The regulatory method for monitoring both the organic and elemental carbon (OC, EC) portions of DPM is a laboratory-based thermal-optical method with a typical turnaround time of one week. In order to evaluate exposure levels and take corrective action prior to overexposure, a portable real-time device capable of quantifying both OC and EC is needed. To that end, researchers from the National Institute for Occupational Safety and Health (NIOSH) designed and tested the feasibility of a device based on bandpass optical filters that target key infrared wavelengths associated with DPM and its spectroscopic baseline. The resulting device, referred to here as a non-dispersive infrared (NDIR) spectrometer could serve as the basis of a cost-effective, field-portable alternative to the laboratory thermal-optical method. The limits of quantification (LOD) indicate that the NDIR spectrometer can quantify EC, OC, and TC provided they are present at 20, 37, and 46 µg/m3 or more, respectively. In the event that the NDIR spectrometer is integrated with a sampler and filter tape the LOD is estimated to be reduced to 13, 7, and 10 µg/m3 for EC, OC, and TC, respectively. These LOD estimates assume a face velocity of 59 cm/s and a sampling time of 30 min. [Description provided by NIOSH]
• Subjects:
  Aerosols Mining Occupational Health Particulate Matter Safety Vehicle Emissions
• Keywords:
  Aerosol Particles Diesel Emissions Infrared Spectroscopy Mining Industry Particulates Sampling Equipment
• Series:
  Mining Publications
• ISSN:
  0278-6826
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  North Carolina ; OSHA Region 10 ; OSHA Region 4 ; OSHA Region 6 ; Texas ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SMRD - Spokane Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  58
• Issue:
  6
• NIOSHTIC Number:
  nn:20069400
• Citation:
  Aerosol Sci Technol 2024 Jun; 58(6):694-705
• Contact Point Address:
  David Parks, NIOSH, 315 E Montgomery Ave, Spokane, WA 99207
• Email:
  dparks@cdc.gov
• CAS Registry Number:
  Carbon (CAS RN 7440-44-0)
• Federal Fiscal Year:
  2024
• NORA Priority Area:
  Construction ; Mining
• Peer Reviewed:
  True
• Source Full Name:
  Aerosol Science and Technology
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:380fedaeb15cef8451ea80e225a009cc535e1d17e0fb508f29f4292b34cd0cbddcb50b870ba826347782f6aed59e668e8b4f7f4952657a7e7acc2dd5453f888a
• Download URL:
  https://stacks.cdc.gov/view/cdc/215701/cdc_215701_DS1.pdf
• File Type:
  [PDF - 1.71 MB ]