Laboratory Evaluation of the Shinyei PPD42NS Low-Cost Particulate Matter Sensor

Details

• Personal Author:
  Austin E ; Novosselov I ; Seto E ; Yost MG
• Description:
  Objective: Finely resolved PM2.5 exposure measurements at the level of individual participants or over a targeted geographic area can be challenging due to the cost, size and weight of the monitoring equipment. We propose re-purposing the low-cost, portable and lightweight Shinyei PPD42NS particle counter as a particle counting device. Previous field deployment of this sensor suggests that it captures trends in ambient PM2.5 concentrations, but important characteristics of the sensor response have yet to be determined. Laboratory testing was undertaken in order to characterize performance. Methods: The Shinyei sensors, in-line with a TSI Aerosol Particle Sizer (APS) model 3321, tracked particle decay within an aerosol exposure chamber. Test atmospheres were composed of monodisperse polystyrene spheres with diameters of 0.75, 1, 2 3 and 6 um as well as a polydisperse atmosphere of ASHRAE test dust #1. Results: Two-minute block averages of the sensor response provide a measurement with low random error, within sensor, for particles in the 0.75-6µm range with a limit of detection of 1 µg/m3. The response slope of the sensors is idiomatic, and each sensor requires a unique response curve. A linear model captures the sensor response for concentrations below 50 µg/m3 and for concentrations above 50 µg/m3 a non-linear function captures the response and saturates at 800 µg/m3. The Limit of Detection (LOD) is 1 µg/m3. The response time is on the order of minutes, making it appropriate for tracking short-term changes in concentration. Conclusions: When paired with prior evaluation, these sensors are appropriate for use as ambient particle counters for low and medium concentrations of respirable particles (< 100 ug/m3). Multiple sensors deployed over a spatial grid would provide valuable spatio-temporal variability in PM2.5 and could be used to validate exposure models. When paired with GPS tracking, these devices have the potential to provide time and space resolved exposure measurements for a large number of participants, thus increasing the power of a study. Erratum PLoS One 2015 Oct; 10(10): e0141928: The y-axis label for Fig 5 incorrectly states mean rather than difference. The correct y-axis is "Difference of Shinyei and APS Mass (µg/m3)". [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Epidemiology Lung Lung Diseases Mining Occupational Health Respiratory System Respiratory Tract Diseases Safety
• Keywords:
  Aerosol Particles Aerosols Air Sampling Equipment Monitoring Systems Particle Counters Particulate Sampling Methods Sensors
• ISSN:
  1932-6203
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Maryland ; New York ; North Carolina ; OSHA Region 10 ; OSHA Region 2 ; OSHA Region 3 ; OSHA Region 4 ; Tennessee ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  10
• Issue:
  9
• NIOSHTIC Number:
  nn:20063657
• Citation:
  PLoS One 2015 Sep; 10(9):e0137789
• Contact Point Address:
  Elena Austin, Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, United States of America
• Email:
  elaustin@uw.edu
• Federal Fiscal Year:
  2015
• Performing Organization:
  University of Washington
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  PLoS One
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6a4379eedf3c932f99461bc8bcba72d050918e178892803cde80071ab53816e87a8b7d9b636d2b5bf4803d86047d742bd26e430710a2eec2e0265dae66d65f6f
• Download URL:
  https://stacks.cdc.gov/view/cdc/222222/cdc_222222_DS1.pdf
• File Type:
  [PDF - 2.52 MB ]