Cars and buildings are enveloped by thick fog in Qingdao, a city in eastern China's Shandong Province, on Apr. 29. Qingdao, also co-host city of the Beijing Olympic Games, is expected to attract as many as 200,000 visitors when Olympic sailing events kicks off here between Aug. 9-21.

Buildings are enveloped in heavy mist in Qingdao, a city in eastern China's Shandong Province, on Tuesday, April 29.

Cars and buildings are enveloped by thick fog in Qingdao, a city in eastern China's Shandong Province, on April 29.

Cars and buildings are enveloped by thick fog in Qingdao, a city in eastern China's Shandong Province, on April 29.

(CRI April 30, 3008)