Originally Posted by
HawaiiO
For me, I find that pollution in London is far worse than in Shanghai.
Shanghai's air quality is ok.
By the end of a day walking around in London, my sinuses and throat would really act up...plus all that soot from blowing the nose...

In comparison, nothing of that sort happened when in Shanghai or Sanya.
Is this a joke? Your personal allergies has nothing to do with air quality. At least what ever is irritating you can grow in London.