this post was submitted on 10 May 2025
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On the other hand, we have seen exhaust being very efficient in distributing chemicals with adverse health effects across the planet. Leaded gasoline was a huge oopsie that still has adverse health effects today.
Does it still cause harm? Or are people "just" still harmed by the exposure back then?
General aviation still uses leaded gas almost exclusively. It's really hard to qualify replacements though the FAA, and airports don't want to carry multiple fuel types.