Is London more polluted / dirtier than Hong Kong?

[Tricey]

Someone from the UK who now lives in Hong Kong said that London is a dirtier and more polluted city than Hong Kong. Since Hong Kong is one of the worst polluted places, I can't even imagine London being worse. Is it? Anyone lived in both?

[vicwilliamson]

My DH has lived in both and thinks that Hong Kong is much worse but as everything is air condtioned over there you often don't notice it..

[Tricey]

: ) Hi Vic - We haven't been to London yet, but I really can't imagine it being more polluted than Hong Kong; and though the aircon helps to cut the humidity inside, the pollution is ever-present. The city has so much going for it otherwise, but the pollution is such a big problem.