Environmental Injustice: Segregation and Air Pollution in the U.S.
Author Information
Author(s): Shearston Jenni, Shan Xiaorong, Henneman Lucas, Mobley Taylor, Mayeda Elizabeth Rose, Morello-Frosch Rachel, Casey Joan
Primary Institution: University of California Berkeley
Hypothesis
There are historical changes in the relationship between air pollution and segregation in the United States from 1940 to 2010.
Conclusion
The study found that air pollution is inequitably distributed, with minoritized groups facing greater exposure and health effects, and that historical segregation impacts current pollution levels.
Supporting Evidence
- Mean county-level segregation decreased from 1940 to 2010 for both rural and urban counties.
- In 1940, higher segregation was associated with more oil/gas wells and lower gasoline consumption in rural counties.
- By 2010, fewer powerplants and lower gasoline consumption were found in counties with less segregation.
Takeaway
This study shows that pollution affects different racial groups unfairly, and understanding the past helps us see how things have changed over time.
Methodology
The study compared county-level air pollution and segregation using Census data and various pollution sources, applying non-linear generalized additive models.
Statistical Information
Confidence Interval
95% confidence interval: -0.23, -0.07
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website