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Most polluted cities of 2018

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31–40 of 71 posts

Re: Most polluted cities of 2018

#31
Why not measure surface area polluted and how much of that is in a country, rather than very long lists of individual cities?

E.g., China - 100km2, India 500km2 (making up numbers), rather than list 300 cities from each country as nearly equal pollution?

Re: Most polluted cities of 2018

#32
post #10

Anyone knows what the major source of pollution in Indian cities is? My guess would be automobile but I'd like it to be confirmed or denied.

There are multiple sources:

Automobiles (including highly polluting two-stroke rickshaws and motorbikes), coal-fired power plants, industrial emissions, domestic cooking fires, and agricultural burn-offs.

Re: Most polluted cities of 2018

#33
post #11

In a world where individualism and short term profit is valued above all. What do you think happens when we buy asian gadgets on amazon with same day delivery, mindless pollution, from the first step to the last. Go out, and look at the streets, hundreds of cars with (90% of the time) a single person in it. Moving 2 tons of steel for a 80 kilos meatbag, now that's efficiency. We could almost ignore that if it wasn't…

The problem is externalities. Not convenience.

I find this statement confusing. Is it not generally true that optimizing for maximum convenience (coupled with lowest monetary cost) often corresponds with an increase in negative externalities?

Re: Most polluted cities of 2018

#34

All of the US cities in the North America top 50 are rural CA cities. I have to assume that their over all badness last year was due to the fires.

Their monitoring in CA appears to be a lot denser than in (say) the midwestern US. In general, agriculture creates a lot of dust. You can certainly see some hot spots in their CA data due to fires, e.g. the PM2.5 of 200+ in Paradise, CA.

Re: Most polluted cities of 2018

#35

All of the US cities in the North America top 50 are rural CA cities. I have to assume that their over all badness last year was due to the fires.

I think it’s actually the agricultural centers. When I visited NAPA valley when I was younger you could see the smog blanketing the area. Not sure what exactly smogs up the air so foully there from the agricultural production but it seems to be a large contributor.

Re: Most polluted cities of 2018

#36
post #28
post #11

In a world where individualism and short term profit is valued above all. What do you think happens when we buy asian gadgets on amazon with same day delivery, mindless pollution, from the first step to the last. Go out, and look at the streets, hundreds of cars with (90% of the time) a single person in it. Moving 2 tons of steel for a 80 kilos meatbag, now that's efficiency. We could almost ignore that if it wasn't…

And the irony is that the people who have kids tend to be the ones who care the least about these things (whether because for them it's much harder to do anything about it or because they are ignorant). Talk about loving kids.

The people who have kids are also the ones causing the most harm to the environment. The single most effective way to diminish your impact on the environment is to not reproduce.

Re: Most polluted cities of 2018

#37
post #2

How widely known is it that Indian cities are so polluted? I feel like I only hear about pollution in Chinese cities. I feel like the fact that this is dominated by Indian cities would come as a surprise to many.

Media bias, that's all. One country is shaping up to be a formidable foe so certain groups are desperately trying to highlight, amplify, and exaggerate everything for a chance to shit on them. The other country is a quasi-ally not even remotely close to posing a challenge so barely any attention is given.

Re: Most polluted cities of 2018

#38
post #10

Anyone knows what the major source of pollution in Indian cities is? My guess would be automobile but I'd like it to be confirmed or denied.

My guess is manufacturing plants and burning of farm fields. Reason is i am not seeing other big cities like shanghai/Bombay etc. which would have comparable number of automobiles but smaller cities which are known to have big factories.

In many cities, cars contribute relatively less pollution compared to factories and power plants, but because it’s localised along city streets where people live and work, it can be just as dangerous.

Re: Most polluted cities of 2018

#39
post #22

I was fascinated to see how low New York was. Given the immense amount of car traffic, anyone have an idea as to why its so low?

Prevailing winds bring relatively clean air to most any city east of the Mississippi River especially in the winter time. Without nearby mountains, temperature inversions are pretty rare.

In late summer, air quality drops quite a bit as the wind drops off.

Re: Most polluted cities of 2018

#40
post #28
post #11

In a world where individualism and short term profit is valued above all. What do you think happens when we buy asian gadgets on amazon with same day delivery, mindless pollution, from the first step to the last. Go out, and look at the streets, hundreds of cars with (90% of the time) a single person in it. Moving 2 tons of steel for a 80 kilos meatbag, now that's efficiency. We could almost ignore that if it wasn't…

And the irony is that the people who have kids tend to be the ones who care the least about these things (whether because for them it's much harder to do anything about it or because they are ignorant). Talk about loving kids.

I think we barely have time to think about it in the first place, when you're in the sleep, work, entertainment routine, you're much more inclined to watch some netflix than to do something about "important" issues. Add kids in the mix and you're done. You either have to work extra time to be able to get them a decent life or stop working to take care of them, either way the future of humanity isn't really a priority.

You can take personal steps to reduce your footprint sure, but as long as the leaders play their "economical growth at all cost" game we're doomed to fail.

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