A Distributed Network of Low-Cost Continuous Reading Sensors to Measure Spatiotemporal Variations of PM2.5 in Xi’an, China

Details

• Personal Author:
  Cao J ; Gao M ; Seto E
• Description:
  Fine particulate matter (PM2.5) is a growing public health concern especially in industrializing countries but existing monitoring networks are unable to properly characterize human exposures due to low resolution spatiotemporal data. Low-cost portable monitors can supplement existing networks in both developed and industrializing regions to increase density of sites and data. This study tests the performance of a low-cost sensor in high concentration urban environments. Seven Portable University of Washington Particle (PUWP) monitors were calibrated with optical and gravimetric PM2.5 reference monitors in Xi'an, China in December 2013. Pairwise correlations between the raw PUWP and the reference monitors were high (R2 = 0.86-0.89). PUWP monitors were also simultaneously deployed at eight sites across Xi'an alongside gravimetric PM2.5 monitors (R2 = 0.53). The PUWP monitors were able to identify the High-technology Zone site as a potential PM2.5 hotspot with sustained high concentrations compared to the city average throughout the day. [Description provided by NIOSH]
• Subjects:
  Air Pollution Environmental Monitoring Occupational Health Particulate Matter Safety
• Keywords:
  Air Monitoring Air Pollution Air Quality Air Sampling Equipment Author Keywords: Low-cost Portable Sensor Environmental Health Monitoring Exposure Assessment Network Monitoring Particulates PM2.5 Sensors

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• ISSN:
  0269-7491
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 10 ; OSHA Region 9 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  56-65
• Volume:
  199
• NIOSHTIC Number:
  nn:20054823
• Citation:
  Environ Pollut 2015 Apr; 199:56-65
• Contact Point Address:
  Meiling Gao, Environmental Health Sciences Division, School of Public Health, University of California Berkeley, 50 University Hall #7360, Berkeley, CA 94720, USA
• Email:
  mgao@berkeley.edu
• Federal Fiscal Year:
  2015
• Performing Organization:
  University of Washington
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Environmental Pollution
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c68e599a39e5093c9a9b0b807956ac474f15b70e9e0118bc67d672e584418929fea2539b26a17b8d9a66f4e72589797da1088b8143a2e0e622a553b46cb45d90
• Download URL:
  https://stacks.cdc.gov/view/cdc/217245/cdc_217245_DS1.pdf
• File Type:
  [PDF - 563.24 KB ]