Earlier quoted context omitted.
It’s been like this for days, it will continue into next week. We had no announcements where I am, none of the news broadcasts I checked (and I checked a few) mentioned it. The Tokyo metro site wouldn’t even load on my phone. Glad you got a heads up. Don’t really care what Paris is like, tbh. Shit air is shit air. Saying it’s shitter somewhere else isn’t super compelling. The whole point of my original comment was th…
So where you're mistaken, or are not in accordance with the official narrative, is that the pollution must have to do with severe local negligence. Here[1] is simulation results that suggest a different story. 1: https://pm25.jp/m/230519/011/
There is loads of research showing a marked drop-off in the danger to humans from vehicle emissions as you move away from the kerbside. Even walking on the far side of a wide curb can significantly improve your prospects. My point here is that people are living in extreme proximity to tailpipe emissions, all day long.
It is a perfect candidate - perhaps the best candidate city in the world given how much else it gets staggeringly right on urban design - for strict tailpipe emissions regulations. Ban diesel trucks, introduce congestion charges, incentivise the adoption of EVs.
That is unlikely to happen, however, as Toyota in particular famously is one of the biggest global lobbyists for the internal combustion engine - a fact covered numerous times at length here on HN. That’s a fascinating political and economic story in its own right and one I’d encourage people to read up on.
Tokyo’s air quality is a story of corporate and political greed. Nobody does anything about it because no one talks about it.