I have to disagree with the ascertain that lead in fuel was/ is related to LA smog. It is not. The brown LA smog was caused by NOx emissions. Also, the hidden LA smog problem was ozone. Both were fixed with legislation on big producers and the adoption of catalytic converters. Yes unleaded fuel was needed for cats to work, but the lead did not cause the pollution.
Funny thing, the LA power plants were built on the coast to reduce LA ozone. Turns out the math was wrong and those power plants actually made the ozone slightly worst. Bad math not discovered until 1986 UCLA chemistry research paper.
Sorry people feel they should keep from living their flying dreams because of all this noise. It took a long time for the govt to get this way, and it will take a while longer to get it back to being reasonable. I hate to see people give up and loose their dream for a transitory situation. We all need to fight and push for the govt we want. Lets debate and make good decisions and get all the stupid people out of the govt.