Cleaner Air Helps Everyone. It Helps Black Communities a Lot. A new study quantified the benefits of pollution reduction in terms of race and class. Author: Elena Shao Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)MoreClick to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)