Snowfall Helps Relieve Air Pollution In Beijing

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Tourists wearing the masks ride on specially constructed 'ice-chairs'... News PhotoBeijing,China - East Asia,Environmental Damage,Environmental Issues,Frozen,Houhai,Pollution,Riding,Serious,Tourism,Tourist,Vertical,WeatherPhotographer Collection: Getty Images News 2013 Getty ImagesBEIJING, CHINA - FEBRUARY 03: Tourists wearing the masks ride on specially constructed 'ice-chairs' on the frozen Houhai Lake during severe pollution on February 3, 2013 in Beijing, China. Houhai Lake is a popular place for winter sport and entertainment in Beijing. (Photo by Feng Li/Getty Images)