A woman rides in fog-bound Hefei, capital of east China's Anhui Province, Jan. 3, 2017. A red alert for fog in large parts of China was issued by the National Meteorological Center on Tuesday. (Xinhua/Meng Dingbo)
A woman rides in fog-bound Hefei, capital of east China's Anhui Province, Jan. 3, 2017. A red alert for fog in large parts of China was issued by the National Meteorological Center on Tuesday. (Xinhua/Meng Dingbo)