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In New York City, congestion pricing leads to marked drop in pollution

(e360.yale.edu)
472 points Brajeshwar | 1 comments | 10 Dec 25 15:25 UTC | HN request time: 0.195s | source
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lkbm ◴[10 Dec 25 15:34 UTC] No.46218856[source]▶
> Particulates issued from tailpipes can aggravate asthma and heart disease and increase the risk of lung cancer and heart attack. Globally, they are a leading risk factor for premature death.

Minor nitpick, but tailpipes aren't the primary source of emissions. The study is about PM2.5[0]. which will chiefly be tires and brake pads. Modern gasoline engines are relatively clean, outside of CO2, though diesel engines spit out a bunch of bad stuff.

[0] https://www.nature.com/articles/s44407-025-00037-2

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1. cameronh90 ◴[10 Dec 25 17:55 UTC] No.46220991[source]▶
There are some early tyre and brake dust collection systems which might help, but that won't do much for the road dust.

I've been wondering whether, theoretically, if self driving cars become widely usable and deployed in cities, will they be able to safely operate with harder tyre compounds and harder road surfaces that shed less but don't grip as well?

If nothing else, less aggressive driving should lead to less shedding.