Your air quality will depend on where you live relative to the US Steel Coke plant and wind patterns. If it’s a bad air day, you won’t want to open your windows on a hot evening. It can be frustrating depending on where you live. We do have weather inversions that trap the bad air. You can check two resources. Purple air for the PM2.5 and the smell Pittsburgh app. You can find both links here. https://pghcleanair.com/us-steel/ they can help you get a sense of where the bad air congregates. Purple air tracks PM2.5 it’s unhealthy, but it’s odorless. The bad smell is H2S hydrogen sulfide. You’ll see people reporting it in the smellpgh app.