'Often when areas are building a road or a factory, it goes into a certain part of the city,' the study's author says. 'Putting in that factory or that highway often ends up in areas that are more racially segregated and in the communities of color.'
Researchers combined air pollution monitoring and American Community Survey data from 2014 to 2019 to assess air pollution exposure across the U.S. and found that communities with a high degree of racial residential segregation are exposed to concentrations of total fine particulate matter that are two times higher.
"What this is showing, is that communities across the United States are not exposed to the same mixture of particulate air pollution," Kodros said.
"Even normalizing by total air pollution, the concentrations of these metals are much higher in content in more racially segregated communities compared to well integrated communities," Kodros said. A plume of smoke rises above residential and commercial buildings from the Delaware City Refinery, on April 11, 2022 in New Castle, Dela.This leads to emissions from the factories and roads occurring at different rates based on segregation and race and ethnicity, Kodros said.
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