Post #4458 676 Sep 13, 2025, 04:41 UTC Narrow streets flanked by tall buildings may trap pollution, study showsSource: Phys.org@EverythingScience phys.org Narrow streets flanked by tall buildings may trap pollution, study shows Research by Nottingham Trent University (NTU) shows that streets which are narrower than 20 meters experience irregular and often dangerously high spikes in particulate matter (PM). ❤ 2 😨 1