Detroit has a giant incinerator that burns trash from several states and spreads a sickening cloud for miles around.

I think that the racial categories of those who suffer this is a secondary issue.

The primary issue is that such incinerators should (1) be modified to emit less pollution and (2) should be located in rural areas where the towns are dying anyway (there's no work so most people move away) and far fewer people will be affected.

It might also be possible to buy out their homes so they can move away.