What is the cleanest city in China?

Sanya?

lol

Anywhere on mainland China?

For air quality, definitely not. Sanya esp the last 3 years is plagued by haze and construction dust particles. I'd guess of major cities, Lhasa. Though some would argue that's not actually "in China"....:p

Funny, it's on twitter which is blocked in China (sans VPN).

Go high, go west, and go out of the city. Yes, Lhasa is clean. Sanya (though I haven't been there myself) is not.

Anywhere that is clean as in street clean in the east?

Pyongyang

The streets of Dalian are very clean. Almost like a different country compared to elsewhere on the mainland. Air is still polluted, though nothing like Beijing / Linfen / Shijiazhuang or any of the countless coal dust choked mining towns in the hinterlands.

I have never thought of Chinese major cities as all that dirty (street dirty), by Asian developing country standards. In Shanghai the other day, I was just thinking to myself how clean everything was. I suppose it is all relative to what you have seen and experienced before in other places.

Compare Japan to China and you'll get one view. Compare India to China and it's a different perspective.

Granted you won't see trash blowing around on the streets. Like Tijuana.

But what's up with cleaning walls? Interior and exterior walls.

Get out some high pressure steam washers and clean the outside of the
buildings and wipe down all the black marks on inside walls, especially in
stairwells and landings.

Better yet, when you build your next sky scraper, consider using construction materials that don't suck in the dirty air. My best friend's pad in SH is only about 12 years old, but from the looks of it, you would swear it was built in the 1940s

I live in Shanghai (moved from Manhattan) and I find the streets to generally be much cleaner, unless you're talking about the area around central park.

Much safer too. I do miss the cleanliness of my Michigan upbringing though, and I miss fresh air...

Was nice when the Expo was on and they forced the factories to turn off.

Manhattan is a third world city and dump. You should not be comparing Shanghai with Manhattan because without a doubt Shanghai is better, other than the culture.

What does the culture part mean? You might be getting a lot of odd looks right about now...

Manhattan has pickles and broadway. Then again, compared to some parts of Europe Manhattan is still a dump.