Assessing Traffic-Related Primary Fine Particle Exposure for Southern California Residents and the Environmental Inequality Implications
This research develops a modeling framework for large-scale pollutant exposure assessment for Southern California residents, with the spatial resolution much higher than in previous research. In this research, traffic-related primary fine particulate (PM₂.₅) inhaled mass is quantified for 10,457 census block groups based on modeled values of PM₂.₅ for 203,191 census block centroids that are located within the boundary of the Southern California Association of Government region in calendar year 2003. Then, socioeconomic status data of the block groups are analyzed in relation to the PM₂.₅ inhaled mass. In general, residents in normal-income communities were exposed to 36% lower level of localized mobile-source PM₂.₅ than residents who live in extremely-low income communities, and 29% lower than that of very-low and low-income communities. Two interactive maps are created so that communities that are subjected to high level of exposure can be conveniently identified. The high spatial resolution of these maps and the underlying data makes them valuable for epidemiology and environmental policy analyses.
-
Supplemental Notes:
- This paper was sponsored by TRB committee ADC20 Standing Committee on Transportation and Air Quality.
-
Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Luo, Ji
- Boriboonsomsin, Kanok
- Barth, Matthew
-
Conference:
- Transportation Research Board 96th Annual Meeting
- Location: Washington DC, United States
- Date: 2017-1-8 to 2017-1-12
- Date: 2017
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; Maps; References; Tables;
- Pagination: 13p
- Monograph Title: TRB 96th Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Environmental impacts; Equity; Fine materials; Particles; Socioeconomic factors
- Geographic Terms: Southern California
- Subject Areas: Environment; Highways;
Filing Info
- Accession Number: 01628855
- Record Type: Publication
- Report/Paper Numbers: 17-06752
- Files: TRIS, TRB, ATRI
- Created Date: Mar 14 2017 10:31AM