and the smog goes on ...
http://www.shanghaidaily.com/nation/Heavy-smog-causing-chaos-for-holiday-travelers/shdaily.shtml
HEAVY smog in northern China caused hundreds of flights to be canceled and highways to shut yesterday, disrupting the first day of the New Year holiday.
Large parts of the north were hit by hazardous smog in mid-December, leading authorities to order hundreds of factories to close and to restrict motorists to cut emissions.
The latest bout of air pollution began on Friday and is expected to persist until Thursday, although it should ease slightly today.
In Beijing, 126 flights were canceled at the city’s main airport and all buses to neighboring cities were suspended.
In neighboring Tianjin, the smog was not as serious but visibility much worse, with more than 300 flights canceled at its airport and conditions not expected to improve in the near term, the city government said. Highways into and out of the city were closed.
In Shijiazhuang, capital of Hebei Province that surrounds most of Beijing, about two dozen flights were canceled and eight diverted to other airports because of the smog, the People’s Daily reported.
A total of 24 Chinese cities have issued red alerts for the current round of pollution, which mandate measures such as limiting car usage and closing factories, while 21 have issued orange alerts, including Beijing and Tianjin.