Improving Estimates of Air Pollution Exposure Through Ubiquitous Sensing Technologies

Details

• Personal Author:
  de Nazelle A ; Donaire-Gonzalez D ; Jerrett M ; Matamala J ; Mendez M ; Nieuwenhuijsen MJ ; Seto E
• Description:
  Traditional methods of exposure assessment in epidemiological studies often fail to integrate important information on activity patterns, which may lead to bias, loss of statistical power, or both in health effects estimates. Novel sensing technologies integrated with mobile phones offer potential to reduce exposure measurement error. We sought to demonstrate the usability and relevance of the CalFit smartphone technology to track person-level time, geographic location, and physical activity patterns for improved air pollution exposure assessment. We deployed CalFit-equipped smartphones in a free-living population of 36 subjects in Barcelona, Spain. Information obtained on physical activity and geographic location was linked to space-time air pollution mapping. We found that information from CalFit could substantially alter exposure estimates. For instance, on average travel activities accounted for 6% of people's time and 24% of their daily inhaled NO2. Due to the large number of mobile phone users, this technology potentially provides an unobtrusive means of enhancing epidemiologic exposure data at low cost. [Description provided by NIOSH]
• Subjects:
  Air Pollution Environmental Monitoring Occupational Health Respiratory System Safety
• Keywords:
  Activity Patterns Air Monitoring Air Pollution Author Keywords: Smartphone Cell Phones Exposure Exposure Assessment Global Positioning System Health Effects Inhalation Mobile Equipment

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• ISSN:
  0269-7491
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; North Carolina ; OSHA Region 10 ; OSHA Region 4 ; OSHA Region 9 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  92-99
• Volume:
  176
• NIOSHTIC Number:
  nn:20054700
• Citation:
  Environ Pollut 2013 May; 176:92-99
• Contact Point Address:
  Audrey de Nazelle, Centre for Environmental Policy, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
• Email:
  anazelle@imperial.ac.uk
• Federal Fiscal Year:
  2013
• 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:ef718af792597c8c436722f8f444987432e46fb765b685505e7f97ad96136bf478ef750d23291ab7326683cc3c54c4455d5e802f1370772633af4c21f6cdec3a
• Download URL:
  https://stacks.cdc.gov/view/cdc/217150/cdc_217150_DS1.pdf
• File Type:
  [PDF - 767.21 KB ]