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by asah
1440 days ago
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thx! TIL leaded gasoline was phased out in the 1970s primarily because it clogged catalytic converters needed to end smog, not because of health reasons! (smog used to be terrible - I lived through the latter half of that period, am I can't even relate to how awful it used to be... friends and I remember walking in midtown Manhattan, blowing our noses and it being black... I can't even imagine pre-1980 let alone pre-1970... https://timeline.com/la-smog-pollution-4ca4bc0cc95d ) |
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... In automobiles.
Lead is very much in use for aircraft fuel, just google AVGAS.