Lehigh Valley October 6, 2021 6:46 pm New Study Ranks Lehigh Valley Low in Air Quality When it comes to air quality in Pennsylvania, the Lehigh Valley ranks among the worst, according to a new study. NBC10’s Steven Fisher shows us what Pennsylvania leaders plan to do to change that. US & World Videos 3:51 Pro-Palestinian protesters posted demands on social media for Drexel University 1:36 Nearly 4,000 SEIU members kicked off their convention with a march and rally 0:24 Elderly couple injured after home explosion in Chester County 2:33 Pro-Palestinian protesters remain camped out on Drexel's campus 2:31 Pro-Palestinian protestors set up at Drexel