Air pollution exposure disparities in US public housing developments

Area of Science:

• Environmental Health
• Environmental Justice
• Public Health Policy

Background:

• Fine particulate matter (PM2.5) poses a significant public health risk.
• Existing research shows higher PM2.5 exposure among minority and low-income groups.
• Residents of federally-assisted public housing developments (PHDs) have not been studied regarding PM2.5 exposure disparities.

Purpose of the Study:

• To conduct the first national analysis of PM2.5 exposure in relation to PHD residency in the US.
• To investigate PM2.5 exposure disparities within the PHD resident population.
• To inform environmental, public health, and housing policies.

Main Methods:

• Integrated national PM2.5 concentration data (2011-2015) with PHD location data (2015).
• Utilized American Community Survey data (2011-2015) for socio-demographic information.
• Employed multivariable generalized estimating equations to analyze exposure disparities.

Main Results:

• PHD locations, units, and residents are significantly concentrated in high PM2.5 exposure areas.
• Black, Hispanic, disabled, and extremely low-income households disproportionately reside in PHDs with higher PM2.5 exposure.
• Statistical significance was maintained after accounting for clustering, urbanization, and socio-demographics.

Conclusions:

• PHD residents face disproportionate exposure to PM2.5 air pollution.
• Significant environmental justice issues exist within PHD populations.
• Urgent policy interventions are needed to address these exposure gaps.