Swiss train stations are the pride of all the Confederats! But the quality of the air, even outdoor, along the various platforms is worse than in Beijing (Nothing against the capital city of China, but this city seems to be the one with the worst air quality in the world. Statistical data from: http://www.dailyfinance.com/2010/11/29/10-cities-with-worlds-worst-air/). Last week I went to work by train. Outdoor smoking is allowed everywhere in Switzerland, but the short distance between the platforms of the station, the high density of commuters and the high number of smokers make the Swiss air almost unbreathable between the railways! I had to walk continuously to find some spots of fresh mountain air to breath! Of course I have nothing against the smokers!!!