>It’s still a problem because there are plenty of that kind of aircraft, Yeah. But those aircraft don't tend to inhabit the airspace around cities. Pretty mu

>It’s still a problem because there are plenty of that kind of aircraft, Yeah. But those aircraft don't tend to inhabit the airspace around cities. Pretty much all small commercial aviation in the lower 48 is going to be running turboprops that use normal jet fuel (basically diesel). A suburban airport that actually has a meaningful GA presence is going to put far more lead into the air.