Correlation of Noise Levels and Particulate Matter Concentrations Near Two Major Freeways in Los Angeles, California

Details

• Personal Author:
  Shu S ; Yang P ; Zhu Y
• Description:
  Near-freeway environments are important from public health and environmental justice perspectives. This study investigated the spatial profile of and correlations between noise levels and particulate matter concentrations near two major freeways in Los Angeles, CA. Five minutes averages of A-weighted equivalent continuous sound level (LeqA), ultrafine particle (UFP) number concentrations, and fine particle (PM2.5) mass concentrations were measured concurrently at increasing distances from the freeways on four streets with or without sound wall. Under upwind conditions, UFP showed relatively low concentrations and no obvious gradient, while LeqA showed decay with increasing distance as it did under downwind conditions. Moderate correlations between LeqA and UFP were observed under downwind conditions on all four streets. The presence of a sound wall changed the linear relationship between LeqA and UFP. These data may be used to study the independent and synergistic health impacts of noise and air pollutants near roadways. [Description provided by NIOSH]
• Subjects:
  Air Pollution Noise Noise, Occupational Occupational Health Particulate Matter Safety Transportation
• Keywords:
  Air Pollution Author Keywords: Ultrafine Particles Correlations Freeway Noise Levels Particulates PM2.5 Sound Wall Ultrafine Particles
• ISSN:
  0269-7491
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  130-137
• Volume:
  193
• NIOSHTIC Number:
  nn:20055793
• Citation:
  Environ Pollut 2014 Oct; 193:130-137
• Contact Point Address:
  Yifang Zhu, Department of Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA 90095, USA
• Email:
  yifangzhu06@gmail.com
• Federal Fiscal Year:
  2015
• Performing Organization:
  University of California Los Angeles
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Environmental Pollution
• End Date:
  20270630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7b6ecb03b1c7e0418d397646095f5e9ea1a3e68408fb40b2ed3c91b32c66bc39b4e5bd747096808c04f859d67b38d66df12898a4db968e0cef0a7e41d98fcb2b
• Download URL:
  https://stacks.cdc.gov/view/cdc/213562/cdc_213562_DS1.pdf
• File Type:
  [PDF - 1.87 MB ]