Commuter Exposure to Particulate Matter and Particle-Bound PAHs in Three Transportation Modes in Beijing, China

Details

• Personal Author:
  Fu H ; Li X ; Qiu X ; Yan C ; Yang Q ; Zhang Q ; Zhang Y ; Zheng M ; Zhu T ; Zhu Y
• Description:
  Exposure to fine and ultrafine particles as well as particulate polycyclic aromatic hydrocarbons (PAHs) by commuters in three transportation modes (walking, subway and bus) were examined in December 2011 in Beijing, China. During the study period, real-time measured median PM2.5 mass concentration (PMC) for walking, riding buses and taking the subway were 26.7, 32.9 and 56.9 ug m-3, respectively, and particle number concentrations (PNC) were 1.1 × 104, 1.0 × 104 and 2.2 × 104 cm-3. Commuters were exposed to higher PNC in air-conditioned buses and aboveground-railway, but higher PMC in underground-subway compared to aboveground-railway. PNC in roadway modes (bus and walking) peaked at noon, but was lower during traffic rush hours, negatively correlated with PMC. Toxic potential of particulate-PAHs estimated based on benzo(a)pyrene toxic equivalents (BaP TEQs) showed that walking pedestrians were subjected to higher BaP TEQs than bus (2.7-fold) and subway (3.6-fold) commuters, though the highest PMC and PNC were observed in subway. [Description provided by NIOSH]
• Subjects:
  Air Pollution Hydrocarbons Occupational Health Particulate Matter Polycyclic Aromatic Hydrocarbons Safety Transportation
• Keywords:
  Air Pollution Author Keywords: Particulate Matter Bus Commuter Exposure PAHs Particulates Polycyclic Aromatic Hydrocarbons Subway Ultrafine Particles Walking
• 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:
  199-206
• Volume:
  204
• NIOSHTIC Number:
  nn:20055775
• Citation:
  Environ Pollut 2015 Sep; 204:199-206
• Contact Point Address:
  Mei Zheng, State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
• Email:
  mzheng@pku.edu.cn
• 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:e197c6688b2de160cf06dbb3d138cc1990e199d7fd8b82e3d3bdc3cd7b0f165752ab90765ce1ccf0d1ad400c497a3ca9dc1b809c580d2506092d3ac3bd0fb1ea
• Download URL:
  https://stacks.cdc.gov/view/cdc/213550/cdc_213550_DS1.pdf
• File Type:
  [PDF - 810.69 KB ]