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It's kinda amazing that when horses were replaced by cars, air quality in cities probably improved!
by BurningFrog 1y ago
It's kinda amazing that when horses were replaced by cars, air quality in cities probably improved!
- bob1029 1y agoI find it unlikely that early cars were an improvement over horses with regard to air quality. The catalytic converter wasn't available at commercial scale until 1973.
- dredmorbius 1y agoLead was the bigger problem. Introduced in the 1920s. (Tetraethyl lead was identified as an additive in 1921, its commercial production lagged by a few years, see: <https://en.wikipedia.org/wiki/Tetraethyllead https://en.wikipedia.org/wiki/Tetraethyllead>.)
- BurningFrog 1y agoI wasn't around, but my understanding is that whole cities stank of horse shit & piss. Aside from the unpleasantness, that's a health hazard of it's own.