Photo taken on Jan. 24, 2013 shows the fog-shrouded Lujiazui Area in east China's Shanghai Municipality. Fog hit Shanghai Thursday. (Xinhua/Lai Xinlin)
Photo taken on Jan. 24, 2013 shows a building in the fog in the Minhang District of Shanghai, east China. Fog hit Shanghai Thursday. (Xinhua/Lai Xinlin)
Tourists visit the Bund in the fog in east China's Shanghai Municipality, Jan. 24, 2013. Fog hit Shanghai Thursday. (Xinhua/Lai Xinlin)
