CHINA> Photo
Beijing sky turns blue
(Xinhua)
Updated: 2008-08-02 13:16

The National Stadium, also known as the Bird's Nest, is seen over a man-made lake, at sunset in Beijing, August 1, 2008. The Beijing sky turned from grey to blue Friday, with the average air pollution index dropping to 28, dubbed as "level 1" or "excellent", local environment authorities said.[Xinhua]