What Caused Racial Disparities in Particulate Exposure to Fall? New Evidence from the Clean Air Act and Satellite-Based Measures of Air Quality / Janet Currie, John Voorheis, Reed Walker.

Format:

Book

Author/Creator:

Currie, Janet.

Contributor:

National Bureau of Economic Research.

Voorheis, John.

Walker, Reed.

Series:

Working Paper Series (National Bureau of Economic Research) no. w26659.

NBER working paper series no. w26659

Language:

English

Physical Description:

1 online resource: illustrations (black and white);

Place of Publication:

Cambridge, Mass. National Bureau of Economic Research 2020.

Summary:

Racial differences in exposure to ambient air pollution have declined significantly in the United States over the past 20 years. This project links administrative Census microdata to newly available, spatially continuous high resolution measures of ambient particulate pollution (PM2.5) to examine the underlying causes and consequences of differences in Black-White pollution exposures. We begin by decomposing differences in pollution exposure into components explained by observable population characteristics (e.g., income) versus those that remain unexplained. We then use quantile regression methods to show that a significant portion of the "unexplained" convergence in Black-White pollution exposure can be attributed to differential impacts of the Clean Air Act (CAA) in African American and non-Hispanic White communities. Areas with larger Black populations saw greater CAA-related declines in PM2.5 exposure. We show that the CAA has been the single largest contributor to racial convergence in PM2.5 pollution exposure in the U.S. since 2000 accounting for over 60 percent of the reduction.

Notes:

Print version record

January 2020.