First In-Lab Testing of a Cost-Effective Prototype for PM2.5 Monitoring: The P.ALP Assessment

Details

• Personal Author:
  Borghi F ; Campagnolo D ; Cattaneo A ; Cauda, Emanuele G. ; Cavallo DM ; Fanti G ; Patts J ; Spinazzè A ; Wolfe C
• Description:
  The goal of the present research was to assess, under controlled laboratory conditions, the accuracy and precision of a prototype device (named 'P.ALP': Ph.D. Air-quality Low-cost Project) developed for PM2.5 concentration level monitoring. Indeed, this study follows a complementary manuscript (previously published) focusing on the in-field evaluation of the device's performance. Four P.ALP prototypes were co-located with the reference instrument in a calm-air aerosol chamber at the NIOSH laboratories in Pittsburgh, PA (USA), used by the Center for Direct Reading and Sensor Technologies. The devices were tested for 10 monitoring days under several exposure conditions. To evaluate the performance of the prototypes, different approaches were employed. After the data from the devices were stored and prepared for analysis, to assess the accuracy (comparing the reference instrument with the prototypes) and the precision (comparing all the possible pairs of devices) of the P.ALPs, linear regression analysis was performed. Moreover, to find out the applicability field of this device, the US EPA's suggested criteria were adopted, and to assess error trends of the prototype in the process of data acquisition, Bland-Altman plots were built. The findings show that, by introducing ad hoc calibration factors, the P.ALP's performance needs to be further implemented, but the device can monitor the concentration trend variations with satisfying accuracy. Overall, the P.ALP can be involved in and adapted to a wide range of applications because of the inexpensive nature of the components, the small dimensions, and the high data storage capacity. [Description provided by NIOSH]
• Subjects:
  Aerosols Air Pollution Laboratories Occupational Health Particulate Matter Safety
• Keywords:
  Aerosol Chamber Air Pollution Air Pollution Sampling Air Quality Air Quality Monitoring Author Keywords: Miniaturized Monitors Equipment Testing Exposure Assessment Laboratory Testing Low-cost Monitor Monitors Particulate Sampling Methods Sensors

  More +
• Series:
  Mining Publications
• ISSN:
  1424-8220
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Colorado ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  24
• Issue:
  18
• NIOSHTIC Number:
  nn:20070177
• Citation:
  Sensors 2024 Sep; 24(18):5915
• Contact Point Address:
  Giacomo Fanti, Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy
• Email:
  giacomo.fanti@uninsubria.it
• Federal Fiscal Year:
  2024
• Peer Reviewed:
  True
• Start Date:
  20190913
• Source Full Name:
  Sensors
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:a28eb66f694cb6e46fd5ff6e6dc88ee7fa555f8c009e63ef7bfaaa933312b11ab7a6ab7577afa48a6df01be163a326b862c777486b0f8a559548741cbda6d751
• Download URL:
  https://stacks.cdc.gov/view/cdc/215729/cdc_215729_DS1.pdf
• File Type:
  [PDF - 1.87 MB ]