The Fort Collins Commuter Study: Variability in Personal Exposure to Air Pollutants by Microenvironment

Details

• Personal Author:
  Carpenter T ; Good N ; Koehler K ; Mölter A ; Moore BF ; Peel JL ; Volckens J ; Wilson A
• Description:
  This study investigated the role of microenvironment on personal exposures to black carbon (BC), fine particulate mass (PM2.5), carbon monoxide (CO), and particle number concentration (PNC) among adult residents of Fort Collins, Colorado, USA. Forty-four participants carried a backpack containing personal monitoring instruments for eight nonconsecutive 24-hour periods. Exposures were apportioned into five microenvironments: Home, Work, Transit, Eateries, and Other. Personal exposures exhibited wide heterogeneity that was dominated by within-person variability (both day-to-day and between microenvironment variability). Linear mixed-effects models were used to compare mean personal exposures in each microenvironment, while accounting for possible within-person correlation. Mean personal exposures during Transit and at Eateries tended to be higher than exposures at Home, where participants spent the majority of their time. Compared to Home, mean exposures to BC in Transit were, on average, 129% [95% confidence interval: 101% 162%] higher and exposures to PNC were 180% [101% 289%] higher in Eateries. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Air Pollution Automobiles Carbon Monoxide Environmental Exposure Environmental Monitoring Occupational Health Particulate Matter Safety
• Keywords:
  Air Monitoring Air Pollutants Air Pollution Author Keywords: Air Pollution Carbon Black Carbon Monoxide Exposure Levels Indoor Air Microenvironment Motor Vehicles Particulates Personal Exposure Traffic-related Air Pollution Ultrafine Particles Ultrafine Particulates

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• ISSN:
  0905-6947
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Colorado ; Maryland ; OSHA Region 3 ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  231-241
• Volume:
  29
• Issue:
  2
• NIOSHTIC Number:
  nn:20054510
• Citation:
  Indoor Air 2019 Mar; 29(2):231-241
• Contact Point Address:
  John Volckens, Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado
• Email:
  John.Volckens@colostate.edu
• CAS Registry Number:
  Carbon black (CAS RN 1333-86-4) ; Carbon monoxide (CAS RN 630-08-0)
• Federal Fiscal Year:
  2019
• Performing Organization:
  University of Colorado, Denver
• Peer Reviewed:
  True
• Start Date:
  20070701
• Source Full Name:
  Indoor Air
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:e3d1b501301b70ab39f29810b0b8cb2c4e3367cc488f305e67091bd2a7ce09d883e005999377e4752537240fd463ce32e50dbf0ff9a8010ceb0a67ab8431de0e
• Download URL:
  https://stacks.cdc.gov/view/cdc/217051/cdc_217051_DS1.pdf
• File Type:
  [PDF - 893.77 KB ]