Redlined areas see higher levels of air pollution many decades later : NPR

"We see a really clear association between how these maps were drawn in the '30s and the air pollution disparities today," Joshua Apte, one of the paper's authors and an assistant professor of environmental engineering and environmental health sciences at UC Berkeley, tells NPR. "And that's not surprising, but it is very striking."

https://www.npr.org/2022/03/10/1085882933/redlining-pollution-racism