• Krem [he/him, they/them]@hexbear.net
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    5 days ago

    China, the north especially, had bad air quality due to many things like rural people burning firewood and coal during the winter, dust storms, rapid urbanisation (and a sudden increase in car use) and less-well-regulated heavy industry during the more liberal late 90’s and early 2000s.

    most of those things have been reversed. China has the best air quality in east Asia probably, and I don’t think you’ll find a major world city of over 10 million people that has better air quality than a chinese megacity. for example Taipei, so beloved by liberals, has air quality much worse than any city in the mainland

    • bjc
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      5 days ago

      this is bullshit. i was in china 10 years ago for a week in hangzhou and i never saw the sun. i could only barely tell where it was in the sky. that was perfectly normal. in contrast, in the new york megalopolis, it is shocking when the sun is hidden by haze.

      edit: i said this implying there was no way on earth they could have improved air quality that much in only 10 years. it was shocking to me how bad it was. in all my life i had never seen anything like it, even when new york was filthy. odd days where things were hazy, but nothing at all like this, and it never ended. you just did not ever see the sun. i was there for a week, but everyone there i spoke to said that it was always this way. 10 years isn’t long enough.

      and, indeed, you can see for yourself:

      hangzhou: https://aqicn.org/historical#!city:hangzhou new york: https://aqicn.org/historical#!city:usa/newyork

      anyone who tells you that china’s air quality is anything but fucking terrible basically all the time is trying to work you

          • btbt [he/him]@hexbear.net
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            5 days ago

            Why are you trying to argue that Hangzhou’s air quality isn’t improving by pointing at a source that shows it’s improving? Also, Chinese cities are obviously affected by the fact the whole world outsourced its manufacturing there, what’s the excuse for American cities with shit AQI

            • bjc
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              5 days ago

              what’s a goalpost?

              • CliffordBigRedDog [he/him]@hexbear.net
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                5 days ago

                No one is arguing that China has perfect air quality dipshit

                Its always gonna be challenging to improve the air quality there because its the world’s fucking factory

                You came in here talking about hangzhou’s air quality a fking decade ago and using it in comparison to new york today

                All im saying is that the government there has made a ton of improvements over the last fking decade and that’s supported even by the sources you posted

                • bjc
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                  5 days ago

                  China has the best air quality in east Asia probably, and I don’t think you’ll find a major world city of over 10 million people that has better air quality than a chinese megacity.

                  maybe new york is only 8.6, but it’s famously landlocked and its megalopolis is ~50m. ok. do the same search on tokyo. do it on jakarta. chinese cities are some of the absolute worst in the world. this whole thread is just naked ccprop.

                  china today is better than china 10 years ago. it would be pretty fucking hard to be worse and still have a living population. but it is significantly better than it used to be. the sun is visible on quite a few days of the year in your wonderful cities.

                  • Krem [he/him, they/them]@hexbear.net
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                    5 days ago

                    i’ll adjust my slightly hyperbolic suggestion that there are absolutely no megacities outside china with better air than any megacity inside china. there are probably a couple of examples of big cities with better air than the worst chinese megacity, not that any come to mind. tokyo would be similar, i guess. but new york? JAKARTA? really.

                    chinese cities are some of the absolute worst in the world.

                    no

                  • doubtingtammy@lemmy.ml
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                    5 days ago

                    maybe new york is only 8.6, but it’s famously landlocked

                    Did you mean famously not landlocked?

              • purpleworm [none/use name]@hexbear.net
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                5 days ago

                Do you believe that the air quality being bad is caused by pseudo-communism poisoning reality through the corrupted minds of China’s citizens or do you think that it comes from, for example, industrial plants?

      • Blakey [he/him]@hexbear.net
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        5 days ago

        So I followed your link, because I also went to china ~10 years ago and was sceptical about how much it could change and right now, monitoring stations near Hangzhou range between 24 and 57-ish AQI, and while Tokyo stations appear to be between ~50 and 150. They’ve also, over the last ten years or so, gone from having no days in the green zone, to what appears to be about half the year. So… What were you saying? To me it looks like there has been a staggering improvement.

        • AstroStelar [he/him]@hexbear.net
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          5 days ago

          Talking about air quality in China is a mess because it depends so much on which time of the year and where in the country you are. Across the board you’ll find an improving trend, but air quality still tends to be bad in the winter months and generally worse in northern, inland cities. Tokyo is way ahead here, even Seoul is better despite it being an industrious, car-infested metropolis in spite of all the trains there, so “best air quality in East Asia” is definitely not true.

          I got these graphs from https://waqi.info/, up top you see air quality for 2026, and below the data for previous years.

          Hangzhou is a wealthy, coastal city and over ten years bad air quality has gone from two-thirds of the year to one-third (approximately); in summer most of the days are green but in winter there’s still bad air quality on many days.

          Xi’an is located inland, nestled in a valley surrounded by mountains and close to the Gobi Desert and coal mines to the north. With colder winters, these months of the year are worse than in Hangzhou but in summer they’re not far off.

          Tokyo has had environmental initiatives since the 1970s (look up the “Garbage War”) and has a mature and VERY extensive rail network, and urban expressways that have fewer lanes and lower speeds. Fun fact, the city with the worst traffic in Japan is Naha on Okinawa, despite a population of only 300,000 (the US made it car-dependent during their occupation of Okinawa until 1972)

          Because of influence by the US and car-making chaebols, Seoul was built to be very car-dependent. Its vast rail network has been a very recent development, but it’s showing in the improving air quality when it used to have a similar reputation to Chinese cities, which sometimes gets blamed on pollution literally blowing over from China.

          • Blakey [he/him]@hexbear.net
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            5 days ago

            Interesting that Xi’an is still so poor, it really didn’t seem that bad when I visited (although it’s also just a really fascinating place so perhaps I was distracted… I swear I spent 6 or 7 hours at the Terracotta warriors)

            But thanks for doing the homework! It’s super impressive how far they’ve come! (which seems to be the story of china generally)

      • purpleworm [none/use name]@hexbear.net
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        5 days ago

        anyone who tells you that china’s air quality is anything but fucking terrible basically all the time is trying to work you

        This isn’t a generalization that follows from your statement.