Disparities in exposure to automobile and truck traffic and vehicle emissions near the Los Angeles-long beach port complex | Academic Article individual record
abstract

Objectives: We assessed how traffic and mobile-source air pollution impacts are distributed across racial/ethnic and socioeconomically diverse groups in port-adjacent communities in southern Los Angeles County, which may experience divergent levels of exposure to port-related heavy-duty diesel truck traffic because of existing residential and land use patterns. Methods: We used spatial regression techniques to assess the association of neighborhood racial/ethnic and socioeconomic composition with residential parcel-level traffic and vehicle-related fine particulate matter exposure after accounting for built environment and land use factors. Results: After controlling for factors associated with traffic generation, we found that a higher percentage of nearby Black and Asian/Pacific Islander residents was associated with higher exposure, a higher percentage of Hispanic residents was associated with higher traffic exposure but lower vehicle particulate matter exposure, and areas with lower socioeconomic status experienced lower exposure. Conclusions: Disparities in traffic and vehicle particulate matter exposure are nuanced depending on the exposure metric used, the distribution of the traffic and emissions, and pollutant dispersal patterns. Future comparative research is needed to assess potential disparities in other transportation and goods movement corridors.

authors
author list (cited authors)
Houston, D., Li, W., & Wu, J.
publication date
2014
keywords
  • Automobiles
  • Female
  • Population Density
  • Environmental Exposure
  • Los Angeles
  • Residence Characteristics
  • Humans
  • Male
  • Socioeconomic Factors
  • Risk Factors
  • Environmental Monitoring
  • Motor Vehicles
  • Vehicle Emissions
  • Continental Population Groups
altmetric score

24.884

citation count

18