Traffic-Related Air Pollution (TRAP) Exposures from Border ... Objectives Traffic-Related Air...

Traffic-Related Air Pollution (TRAP) Exposures from Border ... Objectives Traffic-Related Air Pollution
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Transcript of Traffic-Related Air Pollution (TRAP) Exposures from Border ... Objectives Traffic-Related Air...

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    Traffic-Related Air Pollution (TRAP) Exposures from Border Crossings:

    Assessing Affected Populations in El Paso, Texas Rohit Jaikumar1, Tara Ramani1, Amber Trueblood1, Inyang Uwak1,2, Suriya Vallamsundar1, Natalie Johnson2, Josias Zietsman1

    1Center for Advancing Research in Transportation Emissions, Energy and Health, Texas A&M Transportation Institute, 2Department of Environmental & Occupational Health, Texas A&M University School of Public Health

    Traffic Density Values by Census Block Group

    Introduction Results

    • The city of El Paso shares a border with Mexico and is

    home to some of the busiest border crossings in the U.S.

    • In 2015, El Paso was found to be in non-attainment of the

    National Ambient Air Quality Standards for 𝑃𝑀10.

    • Traffic-related air pollution (TRAP) from the border

    crossings may play a significant role.

    • Populations living in proximity to the border crossings may

    be disproportionately exposed to TRAP.

    Methods

    Legend

    "b% EPBorderCrossing ADT_CUR

    25022 - 58237

    58238 - 101809

    101810 - 177953

    Hot Spot Analysis showing affected neighborhoods

    Results • Significant findings revealed that the higher the level of

    education (OR=0.6, p-value= 0.003) and median income

    (OR=0.9, p-value= 0.001), the lower the odds of being in a

    hotspot.

    Conclusions • A systematic GIS-based approach revealed worse air

    quality affected El Paso populations with lower

    socioeconomic indicators.

    • Findings can inform efforts to address TRAP exposure,

    health impacts, and environmental justice issues in border

    regions.

    Future Work • These preliminary findings will further inform our site

    selection for the second phase of the study, which will

    involve conducting personal air monitoring to identify and

    characterize TRAP exposures within the hotspots.

    High Volume Traffic Roadways

    Assessment Process

    Population risk (Odds Ratio)

    Hot spot areas

    Traffic Density Block Groups Buffers VMT

    High Volume Roadways/Truck Routes

    El Paso Border Crossing Traffic

    • To characterize exposures of people affected by TRAP in

    the El Paso border crossing region in two phases.

    • Phase 1 – Examine affected environment and populations

    • Phase 2 – Monitor personal exposures to traffic emissions

    • Identified high traffic volume roadways and truck

    routes.

    • Used GIS to overlay demographic data with traffic

    density data to identify “hotspot” areas most affected

    by border crossing emissions.

    • Employed logistic regression to identify the probability

    of living in a “hotspot” area and the demographics of

    that population.