Re:The health benefits of better air
by SideburnsOfDoom on Wednesday April 28, 2021 @07:35AM
(#26968203)
> Is there a fundamental reason why the subway must be like that?
1) Dust from brakes, as noted by other comments.
2) Tunnels, and stations in underground spaces, therefor hard to ventilate.
> I assume it's not as bad in say Hong Kong?
No idea, but air quality in the London underground is very bad indeed. I mean you can sometimes see a visible brown haze looking down the length of the platform.
1) Dust from brakes, as noted by other comments.
2) Tunnels, and stations in underground spaces, therefor hard to ventilate.
> I assume it's not as bad in say Hong Kong?
No idea, but air quality in the London underground is very bad indeed. I mean you can sometimes see a visible brown haze looking down the length of the platform.
https://airqualitynews.com/2019/11/29/air-pollution-on-londo...