A view of the urban area of Jinan, east China's Shandong Provinces is seen in this photo taken March 11, 2007. Jinan has been controlling the city's smoke-dust pollution during recent years and obtained good results.

A view of the urban area of Jinan, east China's Shandong Provinces is seen in this photo taken March 11, 2007. Jinan has been controlling the city's smoke-dust pollution during recent years and obtained good results.