Even many decades later, redlined areas see higher levels of air pollution

https://www.npr.org/2022/03/10/ [login to see] /redlining-pollution-racism
Neighborhoods that were subject to redlining in the 1930s tend to have higher levels of air pollution many decades later, a new study has found.

The paper's authors looked at air quality data from 202 U.S. cities and found a strong correlation between pollution levels in 2010 and the historical patterns of redlining. Their study was published this week in the journal Environmental Science & Technology Letters.

Redlining was the discriminatory mortgage appraisal practice used by the federal government after the Great Depression, drawing lines around Black and immigrant areas that denoted them as risky sites for mortgages. Neighborhoods were classified from "A" or best, to "D" for hazardous, and colored in red.