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What's even the point of this comment?
The parent and thread seemed to be arguing that low cost housing was intentionally built in places that disadvantaged the people who lived there.
Delhi: 442. Lahore: 334. Beijing: 16. These are the levels of PM 2.5, one of the principle measures for air pollution, on November 19. How China cleaned up its air pollution – and what that meant for the climate: https://theconversation.com/how-china-cleaned-up-its-air-pol...
Seems electric cars produce the same or sometimes more non combustion particulates than ICE cars, eg. bits of road and tire that are flung into the air while driving. So EVs are better than ICE for air quality, but fewer cars even better.
A few things standout to me from the article. 1. London when the ULEZ was brought in was already a lot less polluted than historically.Are there gains from that? London was not that bad by global standards. 2. This was followed by the benefits of COVID lockdowns (not a phrase often used!) as pollution dropped much further. 3. Is this effect even across London? Suburbs vs centre, different types of housing etc.? I gre…
1. Less than historically still has a quite high baseline compared to after ULEZ - if it was more polluted, presumably the change seen here would be more dramatic. 2. Definitely kickstarted it, but we're looking at taking that impact and continuing it for some 5 years after covid ended now. 3. You can look at the ULEZ map and it really covers everything but the outer tube line suburbs [1]. 5. The control group in Lut…
2. does the study separate impact during lockdown from after?
3. my question is whether it had the same impact everywhere. I would guess very much not.
5. the impact of those changes might not be the same from a much better baseline, nor are lifestyle changes the same in a big city and a small town.
A few things standout to me from the article. 1. London when the ULEZ was brought in was already a lot less polluted than historically.Are there gains from that? London was not that bad by global standards. 2. This was followed by the benefits of COVID lockdowns (not a phrase often used!) as pollution dropped much further. 3. Is this effect even across London? Suburbs vs centre, different types of housing etc.? I gre…
Wouldn’t most of those effects also be in the control group too?
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The other approach is to expand what land is available to build on. I understand that in the UK, farmers consider it a lottery win if they get planning permission for some of their farmland to become housing. Despite what many in the UK think about it "being full", this is mostly an illusion from how cramped are the parts in which the houses are allowed to go; the country as a whole is mostly undeveloped. (There are…
Well, letting people build houses right next to freeways and/or on things like earthquake faults or flood plains is what is being done here. Which is, uh, also a problem. Since those people are now at much higher risk, eh? Building on farmland has national security concerns (as countries are slowly realizing), as the country ends up dependent on foreign food imports after awhile. Can't grow food effectively when ther…
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Living very close to busy highways is known to generate poor air quality. I recommend anyone in those locations buy an air purifier for their kids' rooms. I bought a couple reasonably priced HEPA purifiers and I change the filters on schedule. Replacement HEPA filters are very cheap. Also watch out for things that we do indoors that can generate bad air quality. I had a friend who bought a VOC meter and noticed very…
If you’re so inclined, you can build your own air purifier with laser cut panels or 3d printed panels and use a cheap ikea air filter and standard PC fans. All the parts are readily available, and user repairable. If you pair if with an Apollo AIR-1 you can have home assistant ramp up and down the fans with a PC fan controller based on live readings of PM2.5 in your home. I did this with the help of Claude code. http…
Anecdata I was living very close to a busy highway, and my young daughter was wheazing when she had a cold, we had to give her medicine via a nebulizer. When we moved out to the country more, far away from any major roads, these issues all disappeared within a couple months.
Living very close to busy highways is known to generate poor air quality. I recommend anyone in those locations buy an air purifier for their kids' rooms. I bought a couple reasonably priced HEPA purifiers and I change the filters on schedule. Replacement HEPA filters are very cheap. Also watch out for things that we do indoors that can generate bad air quality. I had a friend who bought a VOC meter and noticed very…
I drive the car, you buy the purifier.